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How many yards of soil is 55 quarts? |
2007-03-20 |
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From Claudette:
Costco sells bags of dirt in the quantity "55 quarts".. This makes no sense to me.
How many yards of soil is 55 quarts?
Thanks!
Answered by Stephen La Rocque. |
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Compound interest |
2007-03-20 |
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From cos:
how much would $2000 be at the end of 1 yr. at a daily compounded interest rate of 3% be? the 3% is not yearly but daily. thank you very much for your help!!
Answered by Penny Nom. |
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28 golfers playing golf over 7 days |
2007-03-20 |
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From ian:
I have 28 golfers playing golf over 7 days
I would like everybody to play with each other at least once
Is there a schedule?
Thank you
Ian
Answered by Penny Nom. |
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Write the interval in absolute value notation |
2007-03-20 |
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From Timothy:
1. Write interval in absolute value notation
i) xE[0,9]
ii) xE[-2,20]
Answered by Penny Nom. |
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A hexagonal prism |
2007-03-20 |
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From makiya:
i need help trying to find the surface area and the volume of a hexigon that has an edgde length of 6cm and a hieght of 12 cm
i allready know how do do this by breaking it into triangles and finging the surface area and the volume that way i just need to know how to find a faster formuly that aplies to just hexigons thanks makiya
Answered by Penny Nom. |
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18x - 5 = 3(6x - 2) |
2007-03-19 |
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From Lordyne:
How do I work this math problem? 18x - 5 = 3(6x - 2)
Answered by Pam Fowler and Penny Nom. |
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Find the length and width of the football field |
2007-03-19 |
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From Bobbi:
The Length of a football field is 67 yards greater than the width. The perimeter of the field is 346 yards. Find the length and width of the football field
Answered by Haley Ess. |
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Approximate average speeds |
2007-03-19 |
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From Anne:
A bicyclist pedaled up a 2 mile long hill averaging 4 miles per hour. Upon reaching the top, the bicyclist headed down a 6 mile descent averaging 26 mph. What was the bicyclist's approximate average speed?
Thanks very much in advance!!
Answered by Stephen La Rocque and Penny Nom. |
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How many hours will it take to fill completely? |
2007-03-19 |
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From Leslie:
If a rectangular prism measures 8" and measures 12" by 16", what is it's volume? If after 8 hours the prism is 6" full, how long will it take to fill and how many hours will it take to fill completely?
Answered by Stephen La Rocque. |
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How do I extract 14% |
2007-03-19 |
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From Richard:
I need to find the calculation to answer this;
I have the figure 379.28, how do I extract 14% from this figure
to extract 17.5% I div by 6.714, however i cannot find the formula
on how to do this an extract 14%
Answered by Stephen La Rocque and Penny Nom. |
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A one pass calculation of standard deviation |
2007-03-19 |
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From Murtaza:
Hi
I searched the listings but couldn't find what i am looking for. I have a dataset and i am allowed only 1 pass through it. At the end of this pass i must have the mean and standard deviation. Calculating the mean is easy as also demonstrated in your listings. I think the same can be done for standard deviation as well. But the doubt that i have is this :- Will the calculated standard deviation be sequence dependent ? i.e. if i change the order in which the data items enter the system, will the std deviation also change ??
Thanks in advance
Murtaza
Answered by Penny Nom. |
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Two consecutive odd numbers |
2007-03-19 |
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From Alicia:
The sum of two consecutive odd numbers is divisible by 4.
Can you make similar statements about the sum of three consecutive odd
numbers and of four consecutive odd numbers?
Generalize your findings.
I tried :
n= smallest odd number
therefore the next = n, n+2 and the second =n+4 and the third = n+6
Now n+ n+2+n+4+n+6/4
Please help I am not sure of this I am just trying
Answered by Penny Nom. |
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Three equations in three unknowns |
2007-03-18 |
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From Shawna:
You are told that you are working with three different numbers. When the first number is added to twice the other two numbers, the result s 64( i.e x+2y+2z= 64). When the second number is added to twice the other two numbers the result is 62 (y+2x+2z=6). Finally, when the third number is added to twice the other two numbers, the resut is 59 z+2x+2y=59) Determine the three numbers?
Answered by Penny Nom. |
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n-1/(n+1)! + n+1/n! |
2007-03-18 |
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From Cody:
How do you go about simplifying something like this;
n-1/(n+1)! + n+1/n!?
Answered by Steve La Rocque and Claude Tardif. |
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A triangle |
2007-03-18 |
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From Farzana:
pointsA(1,0),B(8,0),C(3,4) are the vertices of a triangle.What is the of this triangle?
Answered by Stephen La Rocque. |
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