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14 May, 05:41

A general contractor is constructing a building that requires a concrete foundation that is to be 35 feet by 12 feet and 3 inches thick. If the local home supply store sells concrete for $ 125 per cubic yard, what will be the cost of the concrete for the foundation?

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  1. 14 May, 07:42
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    First we need to calculate the volume which is Base*depth or length*width*depth

    first we have to change all the units so they are the same, 3 inches in this case will equal 1/4feet

    multiply all the numbers together

    35ft*12ft*1/4foot = 105 cubic feet

    however the problem says the cost per cubic * yards*

    so take the 105 cubic feet and divide by 3 (3 feet to a yard)

    105/3 = 35 cubic yards

    the cost of 35 cubic yards of concrete =

    35*125 = $4375
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