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How much would 3 yards of stone cost? 2007-08-21
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.
Percentage difference between a microcentury and 50 minutes 2007-08-21
From Wonder:
A lecture period (50 min) is close to 1 microcentury. Find the percentage difference from the approximation?
Answered by Stephen La Rocque.
The surface area of a prism 2007-08-21
From Iliyas:
State the area of prism with logical proof?
Answered by Penny Nom.
The tens digit 2007-08-21
From Arul:
Hi.. Please help me on this question.. Sequence 2, 7, 22,…after the first three terms, each term is three times the previous term plus 1, a(n+1)=3an + 1. What is the sum of tens digit 33rd and tens digit of the 35 term?
Answered by Penny Nom.
Percentage change 2007-08-21
From Saleena:
Hiya, my name is Saleena and I'm studying business at college. My question for you is what is the percentage change of turnover of the following supermarket.

Turnover (Millions) - ASDA

2001 -10,732
2002 -12,188
2003 -13,326
2004 - 14,318
2005 -14,865

Answered by Penny Nom.
A mixture problem 2007-08-21
From Arul:
Hi Please help me with this question Seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight; seed mixture Y is 25 percent ryegrass and 75 percent fescue. If a mixture of X and Y contains 30 percent ryegrass, what percent of the weight of this mixture is X ?
Answered by Stephen La Rocque.
Combining probabilities 2007-08-20
From Arul:
Xavier, Yvonne, and Zelda each try independently to solve a problem. If their individual probabilities for success are 1/4, 1/2 , and 5/8 , respectively, what is the probability that Xavier and Yvonne, but not Zelda, will solve the problem ?
Answered by Stephen La Rocque.
Markup 2007-08-20
From Drew:
I own a manufacturing business and I need to figure out the best way to mark up our products so that we can make a profit for this year. Say for instance we have a plow that we can make for $938.00. We need to mark it up 20% so that we have some income. Do we take the $938 x 20% = $1125.60 or $938 / 80% = $1172.50?
Answered by Stephen la rocque and Harley Weston.
A geometry problem 2007-08-20
From samhita:
ABC is a triangle. Let D be a point on side BC produced beyond B such that BD=BA. Let M be the mid-point of AC. The bisector of angle ABC meets DM at P. Prove that angle BAP=angle ACB.
Answered by Chris Fisher.
A sixth degree equation 2007-08-20
From Farzan:
Dear friends I need to solve this equation with an understandable method for high-school students : (6.67*5.98*10^13/(R^2*2))^2 + 6.67*5.98*10^13/R = (7.27*10^-5*R)^2 please solve this problem if you have time.
Answered by Harley Weston.
I want to fill the hole up with dirt 2007-08-19
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? 2007-08-19
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.
What feature on a graph shows the solution? 2007-08-19
From San:
To solve the equation 2sinx+square root 3=0, what feature of the graph, in the form y=asinx+b would show the solution? Draw a graph to show the solution. thanks.
Answered by Stephen La Rocque.
A square problem 2007-08-19
From Amanda:
Consider a square with side s, diagonal d, area A and perimeter P.

a) express the diagonal in terms of the side.
b) express the area in terms of the diagonal.

Answered by Stephen La Rocque.
The area of a five sided lot 2007-08-19
From Karyn:
I have been looking at your site, but I am still confused as to how to figure out the exact square footage of my irregular lot (since it is a gradual fan lot from the front, and triangles out in the back).
Answered by Harley Weston.
 
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