







Calculating volume of concrete, dirt, sand, anything. 
20061117 

From Debbie: [This article contains a special calculator to help you find the volume (for example, the cubic yards) of material required to fill (or empty) a space if you know the length, width and depth.]
We are wanting to pour a 24'x30' slab that is 5" deep. How many cubic yards of cement do we need? Answered by Penny Nom. 





A volume in cubic yards 
20151112 

From James: The first formula for figuring cubic yards of concrete need is length in feet, times width in feet, times depth in actual inches, divided by 320. Such as, 150x 50 feet x 4inches divided by 320 = cubic yards. How and why does this formula work? Answered by Penny Nom. 





Cubic feet and cubic yards 
20150517 

From Richard: If I have a bag that covers.8cubic ft how many bags are in 2.65 cubic yards? Answered by Penny Nom. 





5000 gallons in cubic yards 
20150217 

From Miguel: If I have a cube shaped tank in the ground that holds 5000 gallons and I want to take it out and fill the hole in with dirt, how much dirt will I need in yards? Answered by Penny Nom. 





The volume of Lake Utah 
20150129 

From Hannan: Lake Utah has a surface area of 3,846 square miles and an average depth of 10.5 feet. In cubic miles, how much water does it hold?
How would you approach this question? Where would you start? Answered by Robert Dawson and Penny Nom. 





67 cubic yards in cubic metres 
20140709 

From gavin: Convert 67 cu yards into cu metres Answered by Penny Nom. 





An oval pool 
20140621 

From steve: I have a 16' x 28' oval pool that is buried 24" deep inground. The dig site is dug
2' wider all the way around the pool. I need to back fill this area with stone. I want to fill this area with 6 to 8"
of stone. How many tons of stone will this take?
Thanks you
Steve Answered by Penny Nom. 





6 inches of dirt in a baseball field 
20140601 

From Mary: The baseball field is 20,000 Square feet, 6 inched deep
I need to know how many cubic yards of dirt this will generate. Answered by Penny Nom. 





19 acres by 12 feet deep 
20140504 

From Bernie: How many cubic yards of dirt is in 19 acres if you dig down 12ft ? Answered by Penny Nom. 





A cubical tank 
20140401 

From renzo: A cubical tank contains 2048 cubic ft of water when HALFFULL. Find the total area of the tank and the length of its diagonal Answered by Penny Nom. 





A formula for determining concrete volume in cu. yd. 
20140319 

From Steven: I know a couple of formulas for determining concrete volume in cu.yd. the one I use most frequently is length in feet x width in feet x thickness in inch. Divided by 324. It works every time. Where does the number 324 come from. Answered by Penny Nom. 





How many cubic centimeters are in a cubic meter? 
20140211 

From merylin: How many cubic centimeters are in a cubic meter? Use a sketch to explain your reasoning. Answered by Penny Nom. 





Converting cost per cubic yard to cost per ton 
20140205 

From Mayra: If 18 cubic yards= 25 tons and it's $28.00 per yard how much is it a ton. I need help please a refresher on my algebra. Thank you Answered by Penny Nom. 





200,000 cubic metres 
20131106 

From John: Hello:
I'm a journalist reporting on the proposal to bury 200,000 cubic metres of radioactive waste below ground near Kincardine, Ontario. I'm trying to put this figure into some kind of perspective for readers  particularly in the U.S., where most are unfamiliar with the metric system. I don't know whether there's any particular frame of reference that would be enlightening  U.S. football fields, Olympicsized swimming pools, etc. Can you help? Thanks very much in advance, John Answered by Harley Weston. 





The number of cords on a pile of wood 
20130918 

From Gary: a cord of wood is 4 feet by 4 feet by 8 feet, how much wood is a row that is 16 in by 5 foot by 32 feet? Answered by Penny Nom. 





1,990 cubic yards in gallons 
20130716 

From Tayler: You have 1,990 cubic yards of concrete to pour.
If the average swimming pool holds 25,000 gallons, how many pools can
Be poured with the 1,990 cubic yards of concrete.
1 cubic yard= 27 cubic feet Answered by Penny Nom. 





5 1/2 cubic feet of sawdust 
20130119 

From Vina: I have a bale of sawdust that containes 5 1/2 cubic feet. How many will I need to make a cubic yard? Answered by Penny Nom. 





How high must the trailer be filled with sand? 
20120806 

From Deb: Your customer has ordered 67 cubic yards of sand. The inside dimensions of your trailer are 40 feet long by 7 feet wide by 9 feet high. How high must the trailer be filled with sand? (Round up to the nearest inch.) Answered by Penny Nom. 





A cubic inequality 
20120325 

From Victoria: The flight path of a bumblebee above the ground can be modelled by the function f(x)= 2x^3 17x^2+ 11x + 130. Where x is the time in seconds and f(x) represents the height in inches above the ground. The entrance to the bee's hive is located 100 inches above the ground. Determine when the bumblebee's height is greater than 100 inches. The bee's height was monitored from 0 to 25 seconds inclusive. (over the domain 0 Answered by Penny Nom. 





One acre of dirt 6 inches deep 
20120111 

From Cameron: Ok what im wanting to know is how many pounds of dirt are in 80
acres of land that is 6 inches deep? My friend and I are stumped on this question Answered by Penny Nom. 





50,000 cubic yards of dirt 
20110812 

From JUDY: IF MY HUSBAND HAS A JOB THAT REQUIRES HIM TO MOVE 50,000 CUBIC YARDS OF DIRT, HOW MUCH LAND WOULD THAT COVER AT 1 FOOT DEPTH. Answered by Penny Nom. 





2 cubic foot bags of mulch 
20110411 

From Ron: if I buy 2 cubic foot bags of mulch, how bags would
I need to equal 1 yard? (13 bags?) Answered by Penny Nom. 





Volume of concrete 
20110403 

From john: I have 1200 square foot that i need to fill at 4 inches deep. how many cubic yards of concrete will i need? and how do I figure this? Answered by Penny Nom. 





A cubic inch 
20110313 

From wyatt: what is a cubic inch? Answered by Penny Nom. 





20 acres, 12 inches deep 
20110224 

From David: How many linear yards of material is needed for a square plot of 20 acres by 12 inches deep? Answered by Penny Nom. 





Identify each polynomial by its degree and number of terms 
20110110 

From betty: Write in standard form and identify each polynomial by its degree and number of terms. How do you do this? Answered by Penny Nom. 





30,000 US gallons of water 
20101012 

From mike: If a swimming pool can hold 30,000 US gallons of water  is it possible to calculate the number of yards of dirt it would take to fill the hole? Answered by Penny Nom. 





Cost of a driveway 
20101011 

From arlene: What is the total cost of a driveway that is 25' wide and 45' long with 4" thickness if the concreat cost 92.00 per cubic yard and labor is 70.00 a cubic yard? Answered by Stephen La Rocque. 





Factoring cubics and quartics 
20100929 

From Tori: How do you factor these types of questions:
* x^3  4x^2  x + 4
*2x^3  3x^2  4x  6
*x^4  15x^2  16 Answered by Robert Dawson. 





70 cubic meters of mulch 
20100730 

From zsuzsi: i have 70 cubic meters of mulch to move and an 8 tonne truck to use
how much tonnage is to 1 square meter so that i can work out how many trips i need to make Answered by Penny Nom. 





Converting kilograms to cubic metres 
20100716 

From Ilai: I want to convert kg to cubic metre Answered by Penny Nom. 





Thickness of sand 
20100707 

From RHONDA: In an 18 x 33 ft area how much is 4 yards of sand in inches to cover this area. Answered by Penny Nom. 





1 cubic yard of top soil 
20100628 

From Bob: If you were to place 1 cubic yard of top soil onto a 15' X 24' Garden area and it was spread evenly would the amount be a dusting of 1" or about 1'? Answered by Penny Nom. 





The median 
20100418 

From amper: How could i get the median with this equation f(x)=(x^2+4)3/13 0 Answered by Harley Weston. 





Aggregate must for a road base 
20100130 

From Bryan: How many cubic yards of aggregate must be ordered for a road base 16 in. thick and 2 miles long with a top width of 30 ft, if the side slopes are one on one, or 45 degrees Answered by Stephen La Rocque. 





What is the length of my sidewalk? 
20100127 

From Les: Name: Les
Who are you: Student
I have a sidewalk 4"thick,4ft. wide,and I have 2cubic yards of concrete. What is the length of my sidewalk? Answered by Penny Nom. 





The roots of a cubic 
20100121 

From Laura: Consider the equation x^3 + 6x^2  x = 30.
One of the roots is equal to the sum of the other two roots.
Find the values of the three roots. Answered by Chris Fisher and Harley Weston. 





Cubic feet 
20100116 

From deb: 1 room 49x24 1 room 18x18 need 6 inch deep can u convert to cubic feet for me thank you Answered by Penny Nom. 





Fill required for a driveway 
20091003 

From Rose: We are going to be pouring a driveway and it is needing a lot of fill. I can't seem to figure this out. Measurements are 30 ft x 30 ft and it goes from 2' deep to 4" (which is what I need overall as it will be 4" of concrete for the driveway. Please HELP Rose in GA. Answered by Penny Nom. 





The volume of a levee 
20090929 

From Wes: I need a levee with a 2:1 slope on both sides (front and back), the length
of the levee is 290 feet, the height of the levee is 15 feet, and the width
of the levee, at the top, is 10 feet. How do I figure out how many CUBIC
YARDS of dirt I need to make the levee? And what formula do I use in
future to figure this out easily? Answered by Penny Nom. 





Digging a trench 
20090915 

From Darrell: In digging a pipe trench that measures 29 feet long, 2 feet 9 inches wide, and 3 feet 6
inches deep, how many cubic yards of earth were removed from the site? Answered by Penny Nom. 





43200 cubic inches in gallons 
20090517 

From Denise: how many gallons are in a tank that has a volume of 43,200 cubic inches? Answered by Penny Nom. 





Cubic feet and cubic yards 
20090508 

From TJ: 21 bags at 2 cubic feet per bag.
How many yards would that be? Answered by Penny Nom. 





10 yards of rubber mulch 
20090415 

From Donna: If I want to buy 10 yards of rubber mulch (bulk), but it only comes in 20 pound bags, how many bags do I need to buy? Answered by Harley Weston. 





Cubic yards of dirt 
20090415 

From ravi: Calculate the cubic yards of dirt to the nearest whole number (0) required to fill
a basement 9 ft 6 in. deep of the following size. base1= 47.0 ft, base2= 57.2 ft,
and the height is 15.0 ft Answered by Penny Nom. 





310,000 cubic yards of concrete 
20090331 

From Mary: I am interested in getting a good, general analogy for 310,000 cubic yards of concrete 
ideally as a length (miles) or distance between two US cities. Thanks! Answered by Penny Nom. 





How many bags do I need? 
20090316 

From Dawn: I need to purchase an item that is .4 cubic feet in size and the amount
I need is 5.625 cubic feet. How many bags do I need? Answered by Penny Nom. 





A cubic polynomial 
20090311 

From Pedro: I am having trouble figuring out the soultions for the polynomial equation
6x^317x^2+4x+12=0 Answered by Robert Dawson. 





Cubic feet 
20090307 

From A student: What is cubic feet and how do I use it in this question? (picture below) Answered by Stephen La Rocque. 





How many gallons does my soup kettle hold? 
20090215 

From Old: I have a round kettle I use to make soup for the hungry. I was curious on how many gallons it holds. The radius is 16 inches and the height is 18 inches. Answered by Penny Nom. 





Tearing down a wooden privacy fence 
20090214 

From Dezra: we are tearing down a wooden privacy fence, it is 180' in length and
the boards are 4"w x 6' H=A0x 1" thick
i have a truck that holds 15 cubic yards. I would like to=A0know how many loads it's going to take to haul it off.
thank you for your help
dezra Answered by Harley Weston. 





Cubic feet gas to grams of gas 
20090211 

From tim: I was trying to convert cubic feet gas to grams of gas. Is there a formula to complete this task? Answered by Robert Dawson. 





Cubic centimeters and ounces 
20090206 

From Dawn: 1 syringe contains 5.5cc of medicine & cost $13.50
1 2 oz bottle of medicine cost $17.50
How many cc's in 2 oz, & which is the better deal? Answered by Stephen La Rocque. 





Fill behind a retaining wall 
20090205 

From Fausto: i'm trying to figure out how many cubic yards i will need. I built a retaining wall that it's 5 feet high, running 90 feet long. There is a slope running to the wall of 24 degrees. The distance from the top of the slope to the wall is 12 feet. I don't know how to calculate how many cubic yards of fill dirt i need in there. Please help. Thanks! Answered by Harley Weston. 





How many yards are in a cord? 
20090204 

From joanna: How many yards are in a cord? Answered by Robert Dawson and Penny Nom. 





A cubical tank that is 8 m on a side 
20090125 

From gina: Suppose one edge of a cubic tank is 8m; Find the volume of the tank in cubic meters Answered by Penny Nom. 





A one cubic mile lake 
20090109 

From dye: how many liters are in a one cubic mile lake Answered by Robert Dawson. 





100 yds of concrete 
20081228 

From Carol: how much money is a 100 yds of concrete @ $80cy? Answered by Penny Nom. 





A cubic yard of concrete 
20081228 

From David: assuming that one cubic yard of concrete is 4 thick and 3 long, how many square feet does it cover?
the answer is 27 but im not sure how. i spent a lot of time and i still can't figure it out. thank you! Answered by Penny Nom. 





The inverse function for F(x)=x^3+x 
20081218 

From alireza: I want inverse function for F(x)=x^3+x Answered by Robert Dawson. 





Topsoil on a soccer field 
20081202 

From rita: a park foreman decides that a soccer field needs 4 inches of topsoil. soccer field is 100 feet by 250 feet.
1 truckoad is 5 cubic yards. how many truckloads do we need to order. i keep confusing myself with formulas. please explain the steps to me
thank you Answered by Penny. 





Cubic yards of fill dirt 
20081122 

From Donnie: I need to know the formula to figure cubic yds of fill dirt to fill an area from 4ft. deep to 18 inches deep
this lot is on a slope and I am wanting to level 176 ft long by 4ft. deep
the sides is 115 ft. wide
the upper side is 18 inches deep. Answered by Harley Weston. 





15 cubic yards of dirt 
20081120 

From Phillip: How far, in feet, will 15 cubic yards of dirt cover, if I'm laying it 12 feet wide and 4 inches deep? Please provide formula. Answered by Penny Nom. 





Two cubic yards, 4 inches deep 
20081115 

From Donna: How many square feet will 2 cubic yards cover if the depth is 4 inches? Answered by Stephen La Rocque. 





The unusable space in a container 
20081002 

From Billy: an object is 42 inches long, 29 inches wide, and 69 inches high. The usable capacity of this container is 36.4 cubic feet. How much space in percentage is left over from the container? Answered by Penny Nom. 





Conversion to cubic feet 
20081001 

From Dorothy: What is the cubic feet of an item that is 7"x16 7/8"x19" Answered by Harley Weston. 





One acre, 1 foot deep 
20080923 

From ed: 1 acre square by 1 foot deep how many cubic yards Answered by Penny Nom. 





Cubic yards and quarts 
20080916 

From Mary: I need 2 yards of soil, how many quarts is this? Answered by Penny Nom. 





A cubic equation 
20080825 

From RAM: The following Cubic Eqn should have three roots  what are they?
x^327=0 Answered by Penny Nom. 





Converting to cubic yards 
20080815 

From Lisa: I need to convert 32,000 square feet, 5 inches deep to cubic yards. Can you help me?
Thank you Answered by Harley Weston. 





22 cubic feet 
20080814 

From julio: how to measure to get 22 cubic feet, do i need the
Height
Length
width Answered by Penny Nom. 





24 in by 14 in by 14 in in cubic feet 
20080805 

From Tom: I have a box that has internal dimensions of: 24in. H x 14in. W x 14in. D.
How many cubic feet is this internal space? Answered by Penny Nom and Victoria West. 





A cubic mile of water 
20080803 

From Fred: [QQ] HOW MUCH WATER IS THERE IN A CUBIC MILE? Answered by Stephen La Rocque. 





The weight of a cubic yard of dirt 
20080721 

From Robert: I need to know how many pounds of dirt is in a cubic yard Answered by Penny Nom. 





How much sand do I order? 
20080715 

From jackson: We would like to put 2 inches of sand down. The pool is 24 feet.
How much sand will we need?
The person we spoke to yesterday was talking in tons, but on these sites it is
talking cubic yards or feet.
Please help. We would like to get the sand ordered so we can get the pool up! Answered by Harley Weston. 





Pounds per cubic foot 
20080708 

From Peter: A column has a diameter of 42 feet, a height of 40 feet, and weighs 15 tons. What is the mean number of pounds per cubic foot? Answered by Penny Nom. 





Cubic centimeters and milliliters 
20080707 

From Robert: how many milliliters are in 750 cubic centimeters? Answered by Harley Weston. 





Packing a truck 
20080610 

From Ann: I am renting a 24ft box truck and have been told it is 1401 cubic feet. I want to know if I have 23 display cases to move and each is 6ft X 2ft X 3ft will the all fit? Or do I need additional info in order to figure this out? Answered by Penny Nom. 





Filling a hole with sand 
20080605 

From greg: I have a 18 ft. diameter circle and need to put 2 in. of sand in it i need to know how much sand in cubic yards and tons Answered by Harley Weston. 





50 cubic yards of dirt 
20080531 

From Mary: 50 cubic yards of dirt is allowed.
16 feet of width and 1 foot of depth.
How far can can you cover in length? in feet, yards or miles? Answered by Janice Cotcher. 





4x^3  6x + 2 = 0 
20080528 

From paul: 4x^3  6x + 2 = 0 Answered by Janice Cotcher. 





Convert cubic inches to gallons 
20080526 

From Rosemarie: How do you convert cubic inches to gallons? Thanks for your help. Answered by Penny Nom. 





.5 cu ft of sand to lbs. 
20080525 

From rogersimmons: needtocovert .5 cu ft. of sand into lbs. Answered by Penny Nom. 





x^36x^2+3x+5=0 
20080522 

From faiz: x36x2+3x+5=0 Answered by Janice Cotcher and Harley Weston. 





The volume of a ditch 
20080509 

From Dixie: I need to find the cubic feet of a ditch 36 inches wide by 28 inches high, by 1561 feet long.
then I need to convert it to cubic yards then to tons. of rock Answered by Penny Nom. 





Surface area 
20080501 

From John: I am working with concrete and need some assistance please. I am trying to figure out what the surface space is for a one cubic foot that is four inches thick? Answered by Penny Nom. 





WHY 144 where does this figure come from 
20080419 

From Sean: Why do you use the number 144 to divide
EG. length of timber 2 inches x 8 inches x 14 foot = 1.5 cubic feet
Calculation is 2x8x14 =224 divide by 144 = 1.5 WHY 144 where does this figure come from Answered by Leeanne Boehm. 





A 13 cubic foot cylinder filled with sand 
20080412 

From Thomas: I have a 100 pound bag of sand. I need to know how much sand I will need to fill a 13 cubic foot cylinder Answered by Harley Weston. 





The zeros of a cubic 
20080409 

From Ryan: what are all the zeros of f(x)= x^31/2x^2+1/3x1/6 Answered by Penny Nom. 





Factor 2x^3 + 3x^2  32x + 15 
20080402 

From sarah: I have a course review I'm working on and I'm not sure how I'm supposed to factor the following
2x^3 + 3x^2  32x + 15. Answered by Penny Nom. 





I have to fill a hole with clay 
20080331 

From Tim: Dear Sirs I have to fill a hole with clay and then 8 inches of top soil. The area is a 24 foot circular hole left by a now removed swimming pool. The area in question pithces from the house from 48" to ground level within that 24 feet. I was wondering how many yards o the top soil has to be 58 inches deep thank you f fill(clay) I would need and how many Yards of top soil to cover that hole Answered by Harley Weston. 





A complex cubic polynomial 
20080326 

From wael: how do we solve in C the following equation:
z^3 + (5i6)z^2 + (924i)z + 13i + 18 = 0 if it admits a pure imaginary root? Answered by Harley Weston. 





(x3)/(xcube+6xsquare25x150) 
20080324 

From rafia: (x3)/(xcube+6xsquare25x150) Answered by Penny Nom. 





The volume of a footing 
20080323 

From Brett: You need to pour an 8"x16" footing that is 100ft. long. At a cost of
$65 per cubic yard, how much will this cost?
(A) $205 or less
(B) more than $205, but less than $220
(C) $220 to $235
(D) more than $235 Answered by Penny Nom. 





The volume of a dam 
20080323 

From JD: How many cubic yards of soil are required to build a small Pond Dam:
100ft wide bottom x 300ft long x 15ft High with a 14ft wide Flat top Answered by Harley Weston. 





How would I factor 2x^3 + 11x^2  7x  6? 
20080322 

From Sean: How would I factor this polynomial?
2x^3 + 11x^2  7x  6 Answered by Stephen La Rocque. 





The volume of a countertop 
20080308 

From Matthew: I need to calculate volume down to cubic feet. I pour concrete countertops
and cant figure out the formula to convert inches and feet. If I have a 2.5 inch
by 2 foot by 16 foot concrete countertop how do I convert it to cubic feet
and hence know how many bags of concrete at .6 cubic feet per bag I will need.
I am trying to input the formula into a spreadsheet. thank you so much Matt Answered by Penny Nom. 





Cubic feet to liters 
20080306 

From chase: if 1cu.ft=6.229 imp. gal and1 imp.gal=4.546 liters how many liters does of 128cuft. hold Answered by Penny Nom. 





How large is a container that will hold 3.5 cu meters? 
20080305 

From Robert: If a company allows you to ship personal belongings while on an over seas assignment and the figure is 3.5 cubic meters. Just how much is the total area in square feet?? 10X10X10 or??? I just wanted to understand the size of a container that would hold 3.5 cubic meters!! Answered by Harley Weston. 





I need to level a 18ft x 21ft area that is very uneven. 
20080304 

From Shelia: I need to level a 18ft x 21ft area that is very uneven. I have used a line level to determine the number of inches at various places in the area. This varies from 1 inch to 15 inches in order to bring the garden area up level. How do I calculate cubic yards so I can order topsoil for the area. If needed, I have the number of inches needed for each square yard area. Answered by Penny Nom. 





Digging a pool 
20080129 

From tom: digging a pond 100ft by 70ft by12ft with a 2:1 side slope. how many cubic yards will be removed Answered by Harley Weston. 





The Shaw family wants a new swimming pool 
20080126 

From Mable: The Shaw family wants a new swimming pool in their backyard. The pool company stated that the first job is to remove dirt from an area 30ft x 60ft. Next, a hole must be dug 25ft x 55ft x an average of 6ft deep. The finished pool would measure 20ft x 50ft x 5ft deep (average). How many square yards of dirt must be removed from the lawn?How much would it cost the Shaw family for dirt removal at $46 a cubic yard (nearest cubic yard)? Answered by Stephen La Rocque. 





Converting cubic inches to ounces 
20080122 

From kim: I am trying to find the formula to figure capacity in ounces for the following:
a rectangle 18" long, .75" wide, .75" deep ....
This is for an art project and the cost estimate. Thanks, Kim Answered by Penny Nom. 





Constructing a pool 
20080115 

From Scott: what it the cubic yards needed for this pool.
It is 14ft. X 28ft. and 6 inches thick. It is 3.5ft. deep on the shallow end and 6ft. deep at the deep end. Answered by Stephen La Rocque. 





Volume in cubic feet 
20071220 

From kim: if i have the inches and need to convert them to cubic feet, how do i do that? i thought it was height X width X length. Answered by Penny Nom. 





What size room would I need for 220 cubic feet? 
20071218 

From Andy: What size room would I need for 220 cubic feet? What is the calculation I would use to find the answer to this problem? Answered by Penny Nom. 





How many gallons are in the tank? 
20071203 

From bobby: my tank holds 740 gallons and the dimensions are 8 ft tall and 4 ft diameter the wine is 3 ft 7.5 inches from the top can you figure out how many gallons are in the tank ? Answered by Penny Nom. 





How many cubic feet are in this box? 
20071126 

From Julio: My son has a box that measures 27X18X19 inches. We want to know how many cubic feet are in this box. Answered by Penny Nom. 





Cubic feet and gallons 
20071119 

From Leonard: Every conversion I find to convert a cubic foot to a gallon is in liquid.
Question, how would 1 cubic foot convert to gallons in dry measurement?
Example say you have 1 Gallon of packing peanuts how many cubic feet would that be?
I can do this and have done it for the heck of it, I took a box 12x12x12 inches, which is a cubic foot,
filled it with packing peanuts the tried to fill a 1 Gallon container, that amount almost fills a 1 gallon
bucket twice.
I even ask a math teacher and was told that 1 cubic foot equaled 7.481 gallons,
then I said that is liquid, teacher ansered yes, then i ask what about dry and got
a response of I do not know. Answered by Harley Weston. 





How do i convert milliliters to grams for water and also for copper sulfate (CuSO4)? 
20071111 

From jenn: how do i convert milliliters to grams for
water and also for copper sulfate (CuSO4)? Answered by Harley Weston. 





Cubic centimeters to cubic yards 
20071110 

From Logan: if i have 188.4cm^3 of concrete how do i change it into cubic yards? Answered by Penny Nom. 





What is the rent? 
20071026 

From Mark: Rent was $1.00 per cubic yard. Dimensions were 36 feet by 200 feet by 12 feet high. What is the rent Answered by Penny Nom. 





How many cubic yards of dirt do I need? 
20071016 

From BELINDA: I need to fill an area of 30,000 square feet with dirt that is 18" in height. How many cubic yards of dirt do I need to do this? Answered by Penny Nom. 





20 tubes of concrete 
20071014 

From Fred: I have 20 8 concrete tubes to fill with 8'of concrete.
How much concrete will I need to order Answered by Stephen La Rocque. 





8x^3 + 4x 3 
20071002 

From Indrajit: 8x^3 + 4x 3 Answered by Stephen La Rocque. 





400 square yards of sidewalk 
20070927 

From Vanessa: I am having a small problem being a subcontractor
I'll having trouble calculating how much concrete it will take to pour a 400 square yard sidewalk 5' wide 4" depth can you show me the equation to figure out how many yards of concrete i will need. Can you help me please?
Thank you very much and have a wonderful day. Answered by Penny Nom. 





Cubic meters, square feet and office space 
20070925 

From Kathryn: Can someone please help and let me know how do you convert 11 cubic meters into square footage? Answered by Steve La Rocque and Harley Weston. 





How much water to fill my bedroom? 
20070922 

From hector: how can i find out how much water i can fill my bedroom with when it measures 12 ft.x12 ft.x10 ft. Answered by Steve La Rocque and Penny Nom. 





What is the inverse function of y=x^3 +x? 
20070919 

From saman: what is the inverse function of y=x^3 +x Answered by Harley Weston. 





How do I determine how many tons, 15 yards of top soil is? 
20070918 

From Terry: One company is selling topsoil by the yard and another by the ton,
how do I determine how many tons, 15 yards of top soil is? Answered by Penny Nom. 





How much space we are talking about when they say 500 cf? 
20070911 

From Rhonda: I was informed while planning a move that the moving company will
allow 500 cubic feet of moving space. Anything over that is $5.99 per cf.
How do I find out exactly how much space we are talking about when
they say 500 cf ?? Thankyou in advance for the advice. Answered by Stephen la Rocque. 





Liquid in a pipe 
20070905 

From christian: how many cubic feet are in a pipe that is 3" (inside diameter) and 459 feet long? Answered by Stephen la Rocque. 





How many cubic yards of concrete? 
20070831 

From Teresa: How many cubic yards of concrete are required for the structure with a bottom piece that is 8" high by 72" by 72", a side that is 8" by 72" by 60", another side that is 8" by 72" by 60 ", a side that is 8" by 72" by 60" with a circle cut out that has a radius of 18", and finally another side that is 8" by 72" by 60" that has a circle cut out that has a radius of 12". Answered by Stephen La Rocque. 





How many cubic feet in a cubic yard? 
20070825 

From George: How many cubic feet in a cubic yard? Answered by Stephen La Rocque. 





How much would 3 yards of stone cost? 
20070821 

From Sue: If it costs $13.50 a ton of 3/4" stone, how much would 3 yards of stone cost? Answered by Steve La Rocque. 





I want to fill the hole up with dirt 
20070819 

From Roger: I have an 18 foot round hole which is 16 inches deep. I want to fill the hole up with dirt. How much dirt do I need to fill the hole?? Answered by Penny Nom. 





How many dusters are required? 
20070819 

From SUSAN: I have a roof that is 40,000 sq. ft. x 3 in. thick. I'd like to know how many 20 yard dumpster it would take to tear the roof off Answered by Harley Weston. 





How do I find out how much cubic meters will spread over meter squared area? 
20070816 

From Derek: How do I find out how much cubic meters will spread over meter squared area? Answered by Penny Nom. 





(x^3)(4x^2)+(4x)=0 
20070815 

From Amanda: solve.
(x^3)(4x^2)+(4x)=0 Answered by Leeanne Boehm. 





Cubic polynomials 
20070814 

From Jalon: The cubic function f(x) = (x+2)^3 touches the x axis only once at x = 2 (negative two). it could also be written as f(x) = (x+2)(x+2)(x+2)
Investigate the cubic functions below as well as the one above and comment clearlt and fully on where they touch/intersect the x axis, and how these points relate to the given function.
a) f(x) = (x 3)(x +4)(x 2)
b) f(x) = x(x + 1)^2 (^2 = that means it squared)
Your comments should reference graphs illustrating your conclusions and display another 2 trinomial graphs that demonstrate your conclusions. particular attention should be given to the number of times your function crosses or touches the X axis.
i dont know how this works but could you send the answer to..... spongy_91@hotmail.com Answered by Stephen La Rocque. 





A pile of soil that is 284' around and 12' high 
20070726 

From bev: I have a pile of soil that is 284' around and 12' high. I need to know how many yards are in that pile. And then how do I convert that to cubic yards Answered by Penny Nom. 





Cubic metres of topsoil 
20070725 

From Laurie: How do I convert cubic meters to square meters? Answered by Harley Weston. 





How many ounces in 782 cubic centimetres? 
20070703 

From wilma: how many ounces in 782cubic centimetres Answered by Penny Nom. 





A sand base for a pool 
20070701 

From Clark: I am adding sand for a base for a pool. It is 20' round and I would like the sand
to be 2" deep. Can you tell me how many cubic feet that would be?
Thanks! Answered by Harley Weston. 





A cubic yard of gravel 
20070624 

From Duncan: I'm trying to figure out how much area 1 cubic yard of gravel would cover at a depth of 2 inches? I've asked around and have many different answers. Answered by Stephen La Rocque. 





New wood siding 
20070620 

From Angela: I have a trailer that is 14x70 and I took off the wood siding that was about 8 feet tall. They want $8.60 a cubic yard.
How many cubic yards do I have and how much will it cost me. Thanks to all! Answered by Stephen La Rocque and Penny Nom. 





Making a box with a particular volume 
20070620 

From Kimberly: How do you convert 487 cf into box? Answered by Stephen La Rocque. 





A round pool 
20070612 

From Gene: How many yards of concrete to put a 28' round pool...it is to be 4 inches deep Answered by Penny Nom. 





Yards of top soil 
20070606 

From Cristina: How many yards of top soil do I need in a area of 2000 square feet with 18" depth. Answered by Penny Nom. 





Converting units 
20070601 

From SAMANTHA: My hot tub is 61 square feet, how many gallons would it be? Answered by Stephen La Rocque. 





Cubic inches and square feet 
20070531 

From keith: is it possible to convert cubic inches to square feet.thanx Answered by Stephen La Rocque. 





A bag of concrete 
20070529 

From rick: I have a bag of concrete that will cover .525 cubic feet of space.
How many square feet will the same bag cover? Answered by Penny Nom. 





Mulch price comparison (price per cubic yard versus price per cubic foot) 
20070523 

From Dianna: This is a 2fold question. I am getting some mulch that is measured in 1 cubic yard for $25.00.
Walmart has a 2 cubic bag for $3.00. I need to cover a 376 sq ft area. I need to know which is
the best deal and how much I need to buy to cover the 376 sq ft. Answered by Stephen La Rocque. 





Edging surrounding a round pool 
20070503 

From Carol: Hello,
I am new at this and very rusty on my math. I am getting a 24 Ft. round pool and would like to put 2ft width stone (small) edging around it. How much would I need to buy. I have to buy it by the yard (cubic yard) I am not looking for an exact, just an approx. even would be great.
Thanks
Carol Answered by Stephen La Rocque. 





Yards of sand in a ton 
20070409 

From Teresa: how many yards of sand are in a ton and how many yards of limestone does it take to make a ton Answered by Penny Nom. 





How much gravel do I need 
20070331 

From linda: how much gravel do I need for 254 square feet to be 4 inches deep? Answered by Penny Nom. 





How many yards of gravel do I need? 
20070328 

From Joel: I am constructing a French drain 100 feet long x 6 inches wide by 18 inches deep. Within this trench will be a 4" diameter pipe which will be surrounded by washed gravel. How many yards of gravel do I need? Thanks! Answered by Stephen La Rocque. 





Square metres, cubic metres and timber 
20070315 

From remy: our timber is in square meter , our supplier is using cubic meter,
how do I convert from cubic meter to square meter.
Many thanks
remy Answered by Harley Weston. 





x^3  3kx + 1 = 0 
20070311 

From Sandra: Show that x^3  3kx + 1 = 0 does not have two distinct roots when k < 0. Answered by Stephen La Rocque and Penny Nom. 





A steel pipe pile 
20070308 

From Sean: Need to fill a 18" OD x 60 feet steel pipe pile with a wall thickness of 1/2" What is the amount of concrete I need in order to fill? Thank you Answered by Stephen La Rocque. 





How many yards of concrete? 
20070228 

From jeremy: I need to figure how many yards of concrete to use. I work for an asphalt company, and we are expanding into concrete. Currently we measure everything in sq. ft. So we came up with 6,960 sq ft of concrete to remove and replace. Currently there is 6" of concrete, and 2" of bedding material. We would like to replace only 4.5" of concrete, the rest in bedding. Here is how I figured, am I correct. 6,960 Sq ft (to simplify I made the Sq ft 350 X 20 ) 350 ft X 20 ft X .33 (1/3 ft or 4") = 2,310 cubic feet 2,310 cb ft / 27 = 85.55 cubic yards Is this correct? Answered by Penny Nom. 





How many cubic yards can my truck hold? 
20070225 

From Mike: If I have a dump truck that has a box that is 14' long sides that are 3.5' high and the width is 7.5' wide... how do I figure out how many cubic yards this truck can hold? Answered by Steve La Rocque, Penny Nom and Melanie Tyrer. 





A concrete foundation 
20070215 

From Jeremy: BiltWEll Construction needs to create a concrete foundation. 5ft deep measuring 60ft by 32ft, outside dimensions, with walls 7in. How many cubic yards of concrete will they need? Answered by Penny Nom. 





Cubic inches 
20070213 

From Renee: a glass has a height of 3 inches and a radius of 2 inches. about how many cubic inches of fwater will the glass hold? and how do you figure the answer? thank you...................renee Answered by Gabriel Potter and Melanie Tyrer. 





Cubic yards 
20070206 

From Mark: I have a pile of dirt that is 200ft long, 40ft wide, and 25ft high. How do I figure out how many cubic yards? Thanks Mark Answered by Penny Nom. 





Yardage of dirt fill 
20070202 

From Gene: I am removing dirt then replacing it with good dirt. I need to know how many yards of fill dirt it would take to fill a diameter 165 feet with fill of 13 ft would take how many cubic yards of dirt. Answered by Penny Nom. 





Price of topsoil 
20070202 

From Tyler: I need to convert cubic yards to square feet. I have topsoil that is $34.30 a cubic yard and I need to know what the price is in square feet. The depth is 18". Answered by Penny Nom. 





Square meters and cubic meters 
20070130 

From Fiel: How do i convert square meter to cubic meter? Answered by Penny Nom. 





A lumber yard receives 24 studs in a bundle 
20070123 

From Roxanne: A lumber yard receives 24 studs in a bundle that contains 25 row (or layers) of studs with 20 studs in each row. A 2X4 stus ia actually 1 1/2'' X 3 1/2'' X 92 5/8 Find the cross sectional area of a bindle in square inches Find the volume of the bundle in cubic feet Answered by Stephen La Rocque. 





The volume of a pool 
20070123 

From Steve: how do we measure the cubic feet of a pool. The pool is 50 feet long by 40 feet wide by 4 feet at the shallow end and 9 feet at the deep end. Answered by Penny Nom. 





How do you calculate cubic feet from inches? 
20070117 

From Sue: How do you calculate cubic feet from inches: 8 1/2 X 11 sheet of paper that is 3/4 inches thick? Answered by Steve La Rocque and Haley Ess. 





A circle of concrete 
20070116 

From JoAnn: Help ! I need to know of many yards of concrete to order for a 14' circle  and 4" thick. Thanks ! Answered by Stephen La Rocque. 





Calculating "yards" 
20070113 

From Donny: I want to learn how to figure out how many tons and yard are needed to do driveways and parking lots. OK from what I've read on the net i think its length width=square feet . i think i get that but i can figure out how to do the height . i understand a 6in would be 0.5 but how bout if its 2ins or 4 in . how do I put the the fraction in to working form. Answered by Penny Nom. 





The volume of a box in cubic yards 
20070111 

From Robert: i have a box 44inch high 16foot long on top and 8 foot long on the bottom 5foot wide how do i find the cubic yards Answered by Penny Nom. 





I want to convert milliliters into grams. 
20061214 

From Kenchotenzin : I want to convert milliliters into grams. Answered by Penny Nom. 





The volume of a box 
20061116 

From Sam: I have this box to mail and i would like to find out the cubic foot of the box.The W52 D13 H 37 inch cubic Answered by Penny Nom. 





Converting cubic meters to gallons and liters 
20061116 

From Lorne: I have a large tank and I would like to know the formula for the conversion. And do you have any other info on web sites that have conversion tools as most of the tools are in u.s and I live in Canada and need the metric conversions. Answered by Stephen La Rocque. 





Yards of concrete 
20061115 

From Tina: How many yards of concrete to cover a 20 x 100 area 4 inches deep? Answered by Penny Nom. 





A container to hold 600 gallons of water 
20061107 

From Cissy: What size rectangular tank would I need to hold about 500600 gallons of water. Answered by Penny Nom. 





How many yards of dirt would it take to raise 1 acre 200 feet? 
20061106 

From Larry: how many yards of dirt would it take to raise 1 acre 200 feet? Answered by Larry. 





How many 1 square 3/8 thick pieces of steel can you get from one cubic foot of steel? 
20061012 

From Jana: How many 1 square 3/8 thick pieces of steel can you get from one cubic foot of steel? Answered by Stephen La Rocque. 





Filling a swimming pool 
20061004 

From Jon: what would be the formula to fill a swimming pool in with dirt that is 15ft wide,36ft long and is 8ft deep to 3ft deep Answered by Penny Nom. 





X^1/3X^1/9=60 
20060926 

From Harini: I need the answer for
The value of X in X^1/3X^1/9=60. Answered by Penny Nom. 





We need to know how many cubic yards of concrete to order for the job. 
20060925 

From Linda: We are pouring an additional drive way and shop in our back yard. The total square foot of all the concrete is 1200 and the concrete will be 3" deep. We need to know how many cubic yards of concrete to order for the job. Answered by Penny Nom. 





Sqyare yards and cubic yards 
20060921 

From Kevin: I WOULD LIKE TO KNOW HOW TO CONVERT SQUARE YARDS INTO CUBIC YARDS OF MATERAIL (DIRT) Answered by Penny Nom. 





Cubic yards of sand 
20060920 

From Michael: How many compacted cubic yards of sand are there in 40 acres of land at a depth of 20 feet? Answered by Stephen La Rocque. 





A hexagonal concrete form 
20060909 

From Lewis: How many cubic yards of cement will be required to fill a hexagonal concrete form with equal 12 foot sides that will be 3 feet thick? Answered by Penny Nom. 





How much cement would I need? 
20060907 

From Lou: At a five to one mix how much sand/gravel and how much cement would I need for a 71/2 yard pour?
What formula would I use for this calculation. My sand/gravel is in a cone shaped pile and I know how to calculate that. I need to know if I have enough and how many bags of cement I need to buy. I will be using a engine operated cement mixer Answered by Harley Weston. 





Cubic feet 
20060906 

From Tom: How do I calculate cubic feet ? What is the formula? Answered by Penny Nom. 





A concrete floor 
20060827 

From Cecelia: We are going to pour a concrete floor for a porch and would like to know how many yards of concrete it would take.
The measurement is32 feet long and 6 feet wide with a depth of 5 inches. Could you tell me how to figure this or how many yards I will need so I will have an idea of the cost. Answered by Penny Nom. 





Cubic yards of trash 
20060823 

From Chris:
I am journalist in California trying to convert cubic yards of trash (appliances, furniture, tires and household trash) into the space of a football field.
Is there a formula for this?
For example, how much of an American football field would 45,000 cubic yards of said trash fill up? The typical American football field I am told is 120 yards (110 meters) long by 53 ^{1}/_{2} yards (49 meters) wide
Ideally, I'd like to be about to say this amount of trash would fill up the football field XXfeet deep
Answered by Penny Nom. 





I am pouring cement 
20060822 

From David:
I AM POURING CEMENT
8FT. X 8 FT. X 4 INCHES
8FT. X 8FT. X 5 INCHES.
8FT. X 8FT. X 5 1/2 INCHES.
WHAT IS THE FORMULA?
Answered by Penny Nom. 





How many cubic yards of soil is needed 
20060816 

From John: how many cubic yards of soil is needed to cover 750 square feet at a height of 3 inches? Answered by Penny Nom. 





A concrete semicircle 
20060815 

From John: I have to figure out how many yards of concrete I need for a semicircle. I have a radius of 21 feet and the concrete is 4" thick. I took 3.14 x (21)^2 then divided by 40 to get how many yards of concrete but that doesn't seem right. Answered by Penny Nom. 





54x14x8 at $28.00 per cubic foot 
20060724 

From Toi: How much would it cost if I had an item that was 54x14x8 and it was $28.00 per cubic foot? Answered by Stephen La Rocque. 





Cement for a large patio 
20060713 

From Jim: I have a 60' by 100' patio. I am wanting to raise it 1 foot. The truck carrying the cement can only hold 10 cubic yards. How many truck loads would I need? Answered by Stephen La Rocque. 





Concrete for a porch 
20060704 

From Sherry: I'm having a porch,the measurement is 3in.deepx10ft.wide x52ft.long how many yards is that i need? the concrete truck wont deliver unless it 5yards or more. Answered by Stephen La Rocque. 





How many bags will it take to cover the area? 
20060614 

From Ken: I have area of 160 sq ft. I want to put mulch in the area 2 inches thick. The bag of mulch comes with 2 cu ft of mulch per bag. How many bags will it take to cover the area? Answered by Penny Nom. 





I have a trench to fill with concrete 
20060611 

From A builder: i have a trench to fill with concrete the size is [57 feet long .x 18 inches wide. x 39 inches high.]would like to know how much concrete should i order. Answered by Penny Nom. 





The volume of a roll 
20060609 

From Yogesh: I have a roll which height is 63 inches & width is 11 inches i want to know that how to calculate the cubic meter of this roll Answered by Penny Nom. 





How many yards will I need? 
20060606 

From Melba: I'm am trying going to put mulch around the tree in my front yard. I am going for 6" deep and 4069.44 sq. in. around.
How many yards of dirt will I need? Answered by Penny Nom. 





what is the cubic feet of 18... 
20060527 

From A student: what is the cubic feet of 18"x18"x24"? Answered by Penny Nom. 





Cubic yards of sand 
20060526 

From Steve: I need to cover an area with sand that is 30 feet wide and 60 feet long and I need the depth of the sand to be 1/4 inch thick. How many cubic yards of sand will I need? Answered by Penny Nom. 





A concrete driveway 
20060521 

From Diane: I am trying to estimate how many cubic yards of concrete I will need to pave my driveway. I have an area that is 30 ft wide by 25 ft long and then goes into an area that is 10 ft wide by 219 foot long. I would like to make this 4 inches thick. How many cubic yards of concrete will it take to do this? Answered by Penny Nom. 





Landscaping 
20060511 

From Luke: HOW MANY CUBIC YARDS OF CONCRETE WILL IT TAKE TO FILL UP A BOX 20FT.X20FT.X6IN DEEP?
HOW MANY CUBIC YARDS OF CONCRETE WILL IT TAKE; I HAVE A 12FT.IN DIAMETER POND AND I WANT TO PUT A 3FT.SIDEWALK AROUND THE OUTSIDE OF IT? Answered by Stephen La Rocque. 





How many gallons in a cubic foot? 
20060424 

From Jana: How many gallons in a cubic foot? Answered by Stephen La Rocque. 





Cubic yards of landscape stone 
20060419 

From Janet: I need to spread landscape stone around my pool. A landscaper said I need 16 yards. What is the area of a cubic yard if I want the stone 3" deep? Answered by Stephen La Rocque. 





A 20 foot container 
20060405 

From Karen: can you tell me how many cubic square meters are in a 20 foot container Answered by Stephen La Rocque. 





Cubic yards of concrete 
20060321 

From Shane: I need to know how many cubic yards of concrete is needed for a 4" thick driveway and 18' wide and 27' long. What formula do I need to use? Answered by Penny. 





Quarts, liters cubic yards and soil 
20060319 

From Kathy: I am trying to find out how many quarts of dirt there are in a yard of dirt. The local flower store sells bags of dirt that are 20 quarts or 22 liters for $1.25 and another store sells a yard of dirt for $25.00. Which is the better deal? Answered by Penny Nom. 





Building a flower bed 
20060317 

From Bobby: I am building a flower bed 60 ft long by 8 ft wide by 3 ft deep. How much dirt will it take to fill it with top soil/dirt. Answered by Penny Nom. 





Adding a cellar 
20060314 

From Spencer:
You want to add a cellar to your store. The construction company told you it would cost $5.90 per cubic yard to dig the cellar plus $20.00 per square ft. to finish it.
How much will it cost to add a cellar 36 feet long, 14 feet wide, and 8 feet deep?
Answered by Stephen La Rocque. 





Cubic yards of dirt 
20060312 

From Gordon: I have an area 40 ft. by 6 ft. in my front yard I want mound over and plant shrubs. How many yards of dirt will I need to do this? Answered by Penny Nom. 





Cubic feet to cubic yards 
20060312 

From Sandy: We need to convert feet to cubic yards. The concrete is 45ft by 10ft by 4ft. How many cubic yards is this? Answered by Penny Nom. 





The volume of a freezer 
20060311 

From Marsha: I have a stand up freezer that measures 2ft deep, 23 inches wide, and 44.5 inches in height. I multiplied them (2x23x44.5) and came up with 2047. I guess my question is, when you look at an ad for this item, they always say 17, 14, or 19 cubic feet. How do they (and I) come up with a number like that? Answered by Penny Nom. 





Factors of a cubic 
20060308 

From Skye: Show that (x+2) is a factor of f(x) where:
f(x) = px^{3} + (4p+2)x^{2} + (5p+4)x + 2p
Find the range of values for which the equation f(x) = 0 has 3 distinct real roots Answered by Penny Nom. 





Volume 
20060302 

From Irene: how do you find the volume in cubic units. i need the basic formula to help my child. Answered by Penny Nom. 





Potting soil 
20060217 

From Cheryl: I need to buy some potting soil for a raised planting bed that is 6'x24'x1'. How do you figure how many 2 cu. ft. bags of potting soil that I will need? Answered by Stephen La Rocque. 





One acre 20 feet deep 
20060216 

From Bob: How many cubic yards of material are in one acre of land approximately 20 feet deep? What is the approximate weight of one cubic yard of Black dirt, Gravel, and Sand? Answered by Penny Nom. 





A concrete slab 
20060213 

From Cheryl: A concrete area that will be used for picnic benches will measure 20 ft on each side. The concrete slab will be 8 inches deep. How many cubic feet of concrete will be needed to construct the patio? Answered by Penny Nom. 





Concrete in a foundation 
20060208 

From Philippe: Can you please help me determine how many cubic yard of concrete I need to purchase for a foundation that is 50' by 25.5 by 8' height and how many cubic yard would I need for the slab that is 50' by 25.5 by 0.5 Answered by Penny Nom. 





Cubic yards of dirt 
20060128 

From Greg: How many yards of dirt do i need to cover an area of 1000 ft long, 20 ft wide and 3 inches deep Answered by Penny Nom. 





I need to order sand for playgrounds 
20060118 

From Jody: I need to order sand for playgrounds. I have their square footage and the various depths of sand needed for each, but sand comes in tons.
What is the formula for converting square footage and depth to tons (for example: 6 inches of sand needed for a 200sq ft area = how many tons?) Answered by Penny Nom. 





Concrete tubes 
20060114 

From Paul: I have 15 tubes. Each tube measures 12in.x 48in. I have to fill each one with concrete. How do I figure how many cubic yards of concrete I will need? Answered by Penny Nom. 





Cubic yards of fill 
20051223 

From Mike: And I have a question in regards to the amount of fill needed to bring a vacant lot up to "grade level".
The lot is 112' x 87' and I need to bring in fill to elevate the finished level up 4'. Answered by Penny Nom. 





Cubic metres to cords 
20051222 

From Duncan: I have a quote of $2.95 per cubic metre of roundwood but I need the conversion equation to convert the above to a $ per cord. Answered by Penny Nom. 





A concrete patio 
20051206 

From Anne: If you are making a concrete patio 4 inches thick, what is the area of the largest patio you could make if you ordered 2 cubic yards of concrete? Answered by Penny Nom. 





Gallons and cubic feet 
20051119 

From Just interested: I have found that 1 cubic foot will hold 7.48 gallons of gasoline, but I would like to know how to come by this answer. Answered by Penny Nom. 





Cubic feet and cubic yards 
20051112 

From Mike: I need to know how to calculate square feet into yards of material. Example: 1320 sq. ft. surface area by 1 in. depth. What does this equal in cubic feet and yards. Thanks for any help you can give me. Answered by Penny Nom. 





Cubic yards of concrete 
20051106 

From Cyndi: I have a carport that is 20' x 31' and a driveway that is 12' x 18' that requires a 3" depth of concrete.
I need to now how many cubic yard it will need to complete these two areas. Answered by Penny. 





How many cubic yards of dirt will be needed? 
20051027 

From Mike: We are filling in a hole left by the removal of an aboveground pool that was dug into the ground. The diameter is 25' across and the depth is 5'. I wondered how many cubic yards of dirt will be needed to fill this hole. Answered by Penny Nom. 





Cubic feet and imperial gallons 
20051027 

From Dave: What is the volume in cubic feet which is occupied by 1080 Canadian gallons of water? Answered by Harley Weston. 





How many cubic feet are in 8 yards? 
20051020 

From Neisha: I am trying to figure out how many cubic feet are in 8 yards. I am trying to pour a concrete slab. The width is 24 ft, lenth is 30 ft, and it is 4 inches thick Answered by Penny Nom. 





How many gallons will it hold? 
20051016 

From Scott: I am building a pond and need to convert the cubic dimensions into gallons in order to know what size fountain pump to purchase.
My pond is 1 foot deep x eight feet long x three feet wide.
How many gallons will it hold? Answered by Penny Nom. 





Cubic yards is in a box trailer 
20050920 

From barbara: i need to know how many cubic yards is in a box trailer that is 96" wide 13' 6" high and 40" long Answered by Penny Nom. 





Cubic yards of topsoil 
20050908 

From Ken: How many cubic yards of topsoil would there be on 100 acres of land if you averaged a 2' depth of material. Answered by Penny Nom. 





The volume of soil needed to fill a planter 
20050810 

From Phil: I need to calculate the volume of soil needed to fill a planter box that measures  880mm W x 6080mm L x 900mm D. Answered by Penny Nom. 





Cubic feet 
20050810 

From Selene: This is my math question I need to convert these inches to cubic feet
34"W x 34"H x 34"L Answered by Penny Nom. 





Cubic yards of sand 
20050804 

From Beth: I am trying to figure out how much sand I will need for ground cover under my children's playset. The area to cover is 30' x 30' and I want 4 inches of sand. Answered by Penny Nom. 





A concrete slab 
20050729 

From Armand: I am
planning to pour a concrete slab over an existing slab in my garage
which is very uneven, with a depth variation from 2 1/2 inches to 5 1/2
inches from level. I'm afraid to over estimate concrete since it will be
wasted but worse, I'm afraid to underestimate. I've broken the slab down
into four sections with the following being the four dimensions, can you
tell me how much concrete I will need please, I would very much
appreciate your help.
1 6ft/8in x 20ft x 4 1/2 in. thick
2 16ft/10in. x 20ft x 3 1/2 in. thick
3 6ft/6in. x 16in. x 5 1/2 in. thick
4 6ft/6in. x 8ft. x 4in. thick
Answered by Penny Nom. 





Cubic feet in a mobile home 
20050722 

From Jeanne: my mobile home is 24 x 56. I'm trying to find out how many cubic feet this is. I'm going to set of some bug bombs and it says 1 can will cover 4000 cubic feet. I don't know how to figure my cubic feet. the ceilings are 8 ft high everywhere but the living and dining room. They are vaulted and approximately 10 feet at the peak. I just need an estimate. Answered by Penny Nom. 





Cubic yards of topsoil 
20050712 

From Maggie: How much topsoil in cubic yards i need to order to cover 7500sq. ft. 3 inches deep? Answered by Penny Nom. 





Discriminant 
20050620 

From A student: If a quadratic has real root, its discriminant b24ac>=0 Is there any similar condition or method by which you can find whether roots of a cubic equation are real or not? Answered by Chris Fisher. 





Digging a hole for a pool 
20050608 

From Debra: I need to have dirt hauled away from my built in pool and the haulers are asking me how many yards of dirt there is. How would I figure that out? It is a 24 ft round pool and 3 inches of soil depth was dug out. Answered by Penny. 





Square feet and cubic feet 
20050530 

From Kim: Is there a relationship between square feet and cubic feet? Answered by Penny Nom. 





Cubic feet of concrete 
20050523 

From Robert:
REQUIRED CUBIC FEET OF CONCRETE TO POUR AN EXTENDED PAD
8 FEET X 8 FEET X 6 INCHES DEEP
Answered by Penny Nom. 





How many cubic feet in a yard? 
20050513 

From Carol: How do you measure a cubic foot? How many cubic feet in a yard? Answered by Penny Nom. 





Cubic yards of sand 
20050427 

From Renee: I need to find out how much sand I would need to order for the base of a horse round pen. The pen is 40 ft across and I would like a depth of 4 inches. I have to order the sand in cubic yards. Answered by Penny Nom. 





Gallons in a tank 
20050402 

From Jim: Would you be so kind as to help me with a problem? My memory has failed me in remembering how to calculate how much liquid in gallons a tank will hold. The tank is 8 feet long and 44 inches in diameter. Answered by Penny Nom. 





An asphalt driveway 
20050402 

From Bob: I'm trying to convert square
feet to cubic yard.
I have an asphalt drive way I'd like to replace with concrete. Concrete
is sold by the cubic yard and I keep telling myself that their must be an easy
conversion table out there somewhere.
My driveway is 18 feet wide and 47 feet long with a proposed depth of 4
inches. Answered by Penny Nom. 





The cost of concrete 
20050308 

From Cathy: Compute the cost of ready mixed concrete for a driveway 70ft long, 10ft wide, 3 inches deep at a cost of $30.00 per cubic yard Answered by Penny. 





I need to fill an area with rock 
20050304 

From Kelly: if I need to fill an area with rock that is 64 feet long by 4 feet wide and 1 foot 2 inches in depth
how many tons of rock will this job require?
it is also sold by cubic yard how many of these cubic yards will I need? Answered by Penny Nom. 





Cubic feet and feet 
20050225 

From Nancy: How do you convert cubic
feet into feet?
The problem is to convert 90 cubic feet into feet. Answered by Penny Nom. 





Factoring a cubic 
20050220 

From Abraham: How would you factor completely,
x^{3}x^{2}+5x5? Answered by Claude Tardif. 





Cubic yards of dirt 
20041228 

From Stephen: How many cubic feet or yards of dirt would be required to cover a 5 acre tract of land to a depth of 10 feet of compacted dirt? Answered by Penny Nom. 





Volume of a box 
20041118 

From Catherine: I need to find a formula to calculate the amount of liquid would hold. maybe the volume or something. its a square box used to hold liquid on a farm . we want to measure how much liquid it can hold. Answered by Penny Nom. 





Cubic yards of concrete 
20040929 

From Tanya: We are starting up a new business and for the business we will be required to order concrete for various shapes. Right now we have a job that requires a concrete slab that a decagon it is 1403/4" from flat side to flat side, 74" from point to center and each flat side is 46" The pad should be 4" thick with 12"x12" continuous footing. Answered by Harley Weston. 





Volume 
20040916 

From Jonathan: I have an area of 22ft x 43 ft, 6 inches high
Sq. ft..946
sq. yds...105.1
What is the cubic feet and cubic yards for this dimension. Answered by Penny Nom. 





Cubic yards 
20040901 

From Garnet: I have the dimensions of 16 feet by 10 ft and 3 1/2 inches deep how much concrete do I need. Answered by Penny Nom. 





Cubic meters 
20040831 

From Brad: I have a 10' x 10' x 12" area & need to find the cubic meters, how do I do this? Answered by Penny Nom. 





15 cubic yards of dirt 
20040822 

From Barry: My question...what is the equivalent of 15 cubic yards of dirt? Answered by Penny Nom. 





130 cc. is ? 
20040820 

From Ayrn: 130 cc. is ?
I have to put 130cc. of petroleum in a bucket how much exactly is that?
Also 110 cc.?
I have to also put 110cc. wood alcohol in a bucket aswell! Answered by Penny Nom. 





Cubic yards of dirt 
20040811 

From A parent: How many cubic yards of dirt would it take to fill an area that is 325 feet by 325 feet and is 3 feet deep? Answered by Penny Nom. 





Combien de litre y a t'il dans un M3 
20040730 

From Un eleve: j'aimerais savoir combien de litre y a t'il dans un M3. car je dois mettre un produit spécial dans une piscine. Answered by Claude Tardif. 





Cubic yards 
20040712 

From A homeowner: I would like to know how many cubic yards are in the following; 20 ft wide x 80 ft long x 4 inches thick?
I am trying to figure out how much concrete I will need to pour for a driveway. Answered by Penny Nom. 





A garden space 
20040616 

From Carol: We have a 17' x 19' garden space. If we want it a foot high raised bed, how many cubic yards of topsoil do we need? Answered by Penny Nom. 





Cubic yards in a pool 
20040530 

From Jerry: HAVE A AREA WHERE I HAD A 18 FOOT ROUND POOL.
THE DEEPEST PART IT WAS IN THE GROUND WAS AROUND 7 INCHES TAPERING DOWN TO AROUND 4 TO FIVE INCHES AND A LITTLE OF THE ONE SIDE ALMOST AT GROUND LEVEL...HOW MANY YARDS OF DIRT WOULD I NEED TO FILL IT IN???? IS THERE A FORMULA FOR THAT.......COULD YOU FIGURE THAT FOR ME?
Answered by Penny Mon. 





Yards in a concrete driveway 
20040427 

From Bobbi: I am wondering how many yards of cement I need for a 49 by 45 area, 5 inches thick. I am a stay at home mom who is not very good at math and I want to pave my drive way. Also what would the yardage be for a 6 inch thick drive way with the same area. Answered by Penny Nom. 





425 cc's of a saline solution 
20040330 

From Julie: 425 cc's of a saline solution is equal to how much in lbsweight?? Answered by Harley Weston. 





Gallons in a cylinder 
20040220 

From Jim: Please advise how to use the formula I saw for determining the number of gallons in a cylinder? This is how it was written
V = pi r2 h
. does this mean pie, or 3.14 X radius squared, X the height? If so please use a standard 55 gal barrel (1' R & 3' H) for example? Answered by Penny Nom. 





Ounces into cubic centimeters 
20040127 

From A student: how do you convert ounces into cubic centimeters? Ex: how does 12 oz. change into cc. Answered by Penny Nom. 





Cubic yards in a concrete wall 
20040118 

From Danny: I am studing for my contractors exam. I am haveing truble with a few questions. I have the answer to the problems but I dont know how to get them my self. please help
How many cu. Yds. Of concrete are in a wall that is 150' long and 8'4" high an d 8' thick Answered by Penny Nom. 





Cubic furlongs 
20040111 

From A student: 1 mile=8 furlongs, how many cubic furlongs in a cubic mile? Answered by Penny Nom. 





Cubic yards of concrete 
20031102 

From John: The foundation is 20' X 20' and the depth is 6", there are also three footings that are 20' X 12" X 12" each. Can you show me the equation to figure out how many yards of concrete I will need to pour the footings and foundation. Answered by Harley Weston. 





Water in a tank 
20030902 

From A parent: if a tank is 48 inches long 14 inches wide and 18 inches deep if a yardstick was inserted into the tank and measured 2 inches of water in the tank how many gallons of water would be in the tank. Answered by Penny Nom. 





How many cubic yards must I purchase? 
20030829 

From Walt:
I am trying to determine how much top soil I must purchase (by the yard). The area is 80' x 15' and I want it 3" thick. How many cubic yards must I purchase? Answered by Penny Nom. 





Yards and cubic feet 
20030811 

From Sonya: How many cubic feet are in a yard? Answered by Penny Nom. 





"cubic feet" of a refrigerator 
20030716 

From Ron:
Is the volume of a home appliance (e.g. fridge or freezer) calculated in a different way? I am planning to replace both my fridge and my freezer but I'm unable to determine what size replacement to get. For example, one company descibes their fridge as being 32"(L) x 30"(W) x 66" (H). I converted those measurements to feet (2.67 x 2.5 x 5.5) and I calculate the fridge to be 36.7 cubic feet. However, the company says the fridge is 18 cf. Answered by Chris Fisher. 





How much soil will be removed? 
20030702 

From Amy: My site is 1230' (eastwest) by 1300' (northsouth) and we need to remove 2 feet of soil from the entire site, how much soil will be removed? Answered by Penny Nom. 





The weight of a fish tank 
20030520 

From A ponderer: I had a question pertaining conversion units..I have a fish tank at home and the dimensions are 24, 44, and 48 inches, I want to find out how much it weighs in pounds when filled up with water...knowing water is 62.4 pounds per cubic feet...do I just divide the 62.4 pounds to 12 because I"m trying to find out through cubic inches. Answered by Penny Nom. 





Gallons of rain 
20030425 

From Jocelyn: If you have a surface of 6500 square feet and 1 inch of rain falls on the surface, how many gallons of water does this equal? Answered by Penny Nom. 





Density 
20030219 

From Rob: What is the formula for converting cubic feet to pounds? (with any substance) Answered by Penny Nom. 





Filling in the back yard with dirt 
20030204 

From Joe:
We just bought a house and need to start filling in the back yard with dirt to level it out. I measure 37'x 56' by 2' deep on an angle. I will be building a retaining wall at the 2' deep portion. The slop will go from the 2' to nothing at the top or near the house. I can't remember how to get the Sq. foot or cubic yards. Answered by Penny Nom. 





Cubic yards in a gravel pile 
20030110 

From Ron: I am looking to find a way to measure gravel piles to get yards. They are generaly not square.it would be like pouring sand out of a bag into a pile. they generaly are concave in dimension. can you help. I have attached a picture to show a small scale what I am working on is in much larger volume. Answered by Harley Weston. 





Factoring a cubic 
20021205 

From Dorota: I got a problem with factorise the expression 2x^{3}+11x^{2}5x50. Answered by Penny Nom. 





The dimensions of a box 
20021203 

From Paula: My son, who is in secondary school, needs to make a box with the inside dimensions of 1.25 cubic feet. It's supposed to be more in the shape of a rectangle than a square. I would like to know the equation to use to find the inside dimensions of a box if I know how many cubic feet (or inches) I need the inside to be. Answered by Penny Nom. 





A cubic 
20021118 

From Jessica: "For what values of the constant p does f have 3 distinct real roots?" The function is f(x)= x^{3}  6x^{2} + p, where p is an arbitrary constant. Answered by Claude Tardif and Penny Nom. 





Cubic centimeters 
20021107 

From Rita: Was in emergency room yesterdayMD aspirated 40cc of fluid from my kneewhat does a "cc" equate to? Answered by Penny Nom. 





How many cubic feet are in a cubic mile? 
20020830 

From William: How many cubic feet are in a cubic mile? Answered by Penny Nom. 





Cubic yards of concrete 
20020824 

From Michael: if you have a 10" dia pipe 8' long how many cubic yards would it take to fill with concrete. how how would you go about figuring it out. and also if you would how many cubic feet, cubic inches in a cubic yard. i know you don't need to answer, seeing i am not in school, but would appreaciate it. Answered by Penny Nom. 





Gallons in a cylindrical tube 
20020821 

From Heidi: IF I HAVE A 12" DIA TUBE WITH 1/4" WALL AND 72" IN LENGTH HOW MANY GALLONS OF WATER WILL THIS HOLD Answered by Penny Nom. 





A box that holds 22.4 liters 
20020707 

From Jon: How do I find the measurements required to make a box that holds 22.4 liters of something? Answered by Penny Nom. 





Ounces and cubic centimeters 
20020530 

From Martin: How many ounces are in 600cc of liquid? Answered by Penny Nom. 





Cubic feet and cubic yards 
20020527 

From John: how do you find the cubic feet/cubic yard of area 10 feet wide by 15 ft long by 2 inches high Answered by Penny Nom. 





A 6,000 gallon tank 
20020428 

From Someone with a big tank: I was wondering if you can find out information about how much liquid fuel can fit in a 6,000 GAL. tank. Right now I do not have the exact dimensions of this tank but I will have it the 29th of April. Could you please Email me and let me know if you can answer this question after I have the correct specifications. Answered by Penny Nom. 





Cubic yards 
20020420 

From Pat: I HAVE AN AREA 10'x6'I WOULD LIKE TO PUT LOAM ON IT 5" DEEP HOW MANY CUBIC YARDS OF LOAM DO I NEED? Answered by Harley Weston. 





How many gallons of water in a cubic foot? 
20020414 

From Richard: I am tring to find out how many gallons of water in a cubic foot. Answered by Penny Nom. 





My 1978 Chevy has a 350 cubic inch engine 
20020311 

From Sharon: If my 1978 Chevy has a 350 cubic inch engine, about what size engine would that be in liter? Answered by Penny Nom. 





A cubic 
20011110 

From Louise: x^{3} + 9x^{2}  7x  63 Answered by Penny Nom. 





Cubic feet 
20010220 

From Frances: I'm trying to calculate cubic feet from the dimensions of a machine given in inches. Width = 32" Height = 79.5" Length = 91.5" Weight = 3920 lbs Please help? Obviously I've been away from school too long!! Answered by Penny Nom. 





Square feet and cubic feet 
20010121 

From Jenny: How do I convert square feet to cubic feet? If I have 2000 square feet then how many cubic feet do I have? Answered by Harley Weston. 





Factoring a cubic 
20001031 

From A student: Factor Completely 18p^{3}  51p^{2}  135p Answered by Paul Betts and Penny Nom. 





Cubic yards and cubic feet 
20000826 

From Rhonda: have 2.47 cubic yards. what could the dimensions, in feet, be to equal this? Answered by Penny Nom. 





Graphing cube roots 
20000427 

From Heather Jones: What do the graphs of cube roots look like? Answered by Walter Whiteley. 





Solving a cubic equation 
19991230 

From Natalia: How can I solve: 2 x^{3}  x^{2} + x  2 = 0 ??? Answered by Penny Nom. 





The three cousins 
19990601 

From Irena: I have three cousins on my dad's side. The product of their ages is 84. Next year the youngest will be 1/4 the age of the middle cousin. In 2 years from now, the oldest will be twice the current age of the middle. What is the age of my oldest cousin? Answered by Harley Weston. 





Question about 3rd degree polynomials 
19990423 

From Patrick Bryan: What is the general solution to the equation with the form: a*x^3 + b*x^2 + c*x + d = 0 I have once seen a solution to this a few years ago, but I do not recall if it was a general solution. What I do know, is that you could simplify this equation to: a*x'^3 + p*x' + q = 0... Answered by Doug Farenick. 





Volume of a cube. 
19990404 

From Alex Elkins: How do you find the volume cubic matter of a cube or space, example how many cubic feet in an example 6" high 4' X 6' rectangle Thank You Answered by Penny Nom. 





Factoring polynomials 
19990329 

From Karen: I have been unable to factorise a polynomial equation and was wondering if you could please help. It is level (1012) maths. The polynomial is x^{3} + x^{2}  24x + 36 I have tried a few factorisation methods such as foctorisation by grouping but it won't work this polynomial. Please help. Answered by Jeff Walters and Jack LeSage. 





Cubic feet and gallons 
19990326 

From Karen Coheley: How many gallons in a cubic ft. ?? Answered by Harley Weston. 





Metric Conversion 
19990307 

From TDestra: Please help to answer this question: Is a cubic centimeter equivalent to milligrams or milliliters, and how many? Also, is it a liquid measure? Answered by Penny Nom. 





Polynomials 
19971007 

From Sheryl and Jeff: I'm a math teacher in Jerusalem, Israel. I'm teaching about graphing polynomial functions in a precalc class. A student asked me what they're good for. I couldn't give her a good example. Do you have one. Thanks. Answered by Penny Nom. 





Cardano's method 
19960311 

From Mike Gorski: What is Cardano's method for finding the roots of a cubic equation? Answered by Harley Weston. 

