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Nickels, dimes and quarters |
2007-03-18 |
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From Alexandra:
Ellen has two more nickels than dimes and three more quarters than nickels. She has $3.35 in all. How many coins of each type does she have?
Answered by Penny Nom. |
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How may litres are in my fish pond |
2007-03-18 |
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From beryl:
I need to work how may litres in my fish pond.
I have measures it in two sections because of it shape.
One section is 1600w, 1100L, 540D.
the other section is 1060W, 1800L, 380D.
Thank you
beryl
Answered by Penny Nom. |
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What will our square footage size be after appropriation? |
2007-03-17 |
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From Melissa:
I have a rectangular lot of 110.0 feet by 396.0 feet. When we sell the District will take 2.38 meters off the front for appropriation. I believe we currently have a 1 acre lot? What will our sqaure footage size be after appropriation?
Thanks,
Melissa
Answered by Penny Nom. |
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The volume of a tube |
2007-03-17 |
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From Tiffany:
If I have a 42" diameter tube with 3 1/2" walls and 108" in length. How may gallons of water will it hold?
Thank you,
Tiffany
Answered by Penny Nom. |
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y = 1/4(x+3)^2-4 |
2007-03-17 |
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From Irene:
How the graph of a parabola f(x)=1/4(x+3)squared-4 can be obtained from the graph of y=xsquared, using Translations and Scalings.
Answered by Penny Nom. |
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A water treatment plant |
2007-03-17 |
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From Elvia:
A water treatment plant is built with three cylindrical tanks to contain the water for a town. Each tank has a radius of 15 feet and a depth of 25 feet. If there are 7.5 gallons in a cubic foot of water, approximately how many gallons of water can be treated at the plant at any one time?
Answered by Penny Nom. |
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A line that is perpendicular to another line |
2007-03-16 |
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From Jesse:
How do you write an equation of a line that is perpendicular to
y+2x+3 and passes through (3,4); I don't understand the steps
of how to do this????
Answered by Stephen La Rocque and Penny Nom. |
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Percentage markup |
2007-03-16 |
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From Debbie:
What formula or formulas do I use if I want to ultimately charge a customer $300 for a service, but need to factor in a 15% commission for a sales rep, $20 to cover the cost of our overhead, the cost of a $25 coupon that we will be sending to the customer to apply to future services. In other words, what amount do I initially quote the customer to be able to cover these costs?
Answered by Stephen La Rocque. |
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The Geosphere at the the Epcot Center park |
2007-03-16 |
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From stephanie:
The epcot center has a diameter of 265 ft the park needs to paint the park one can will cover 400 sq ft how many cans do they need ?
Answered by Stephen La Rocque. |
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A river crossing |
2007-03-16 |
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From tara:
A river has a constant current of 4 kilometers per hour. At what angle
to a boat dock should a motorboat, capable of maintaining a constant
speed of 20 kilometers per hour, be headed on order to reach a point
directly opposite the dock? If the river is 1/2 kilometer wide, how long
with it take to cross?
Answered by Stephen La Rocque. |
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The square of an odd number |
2007-03-16 |
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From Samantha:
Is the square of an odd number always odd?
Answered by Stephen La Rocque and Penny Nom. |
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Conversion |
2007-03-16 |
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From Andrew:
If a lawn is 95.3 square yards, how do I convert that to square meters?
Answered by Stephen La Rocque. |
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Skewness |
2007-03-16 |
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From Lyndsey:
How do I calculate the skewness of a set of data?
Answered by Penny Nom. |
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Equivalent decimals |
2007-03-16 |
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From megan:
Write an equivalent decimal for 13.48.
Answered by Stephen La Rocque and Penny Nom. |
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y-intercept form |
2007-03-16 |
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From Ken:
Simple way on how to convert to & from y-intercept form & Std. form.
Eg: Convert into y-intercept form: 3x+4y+7=0,
Eg.: Convert into Std. Form: y=-1/2x +3, y=50x +300. I would appreciate your
help in this matter, as I find it hard to understand.
Kind Regards: Ken
Answered by Penny Nom. |
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