Question

A homeowner has decided to fill in his pool. The pool is rectangular and measures 20ft wide, 40ft long, and 5.5ft deep throughout. Each cubic yard of fill dirt cost $12. How much will it cost to fill the pool?

Answer 1

The volume of the pool is

`20ft\text{ }*40ft\text{ }*5.5ft=4400ft^3`

a cubic foot is 0.037 cubic yards.

thus

`4400ft^{3^{}}^{}=4400*0.037=162.8yd^3`

but a cubic yard of dirt costs $12, and we need 162.8 cubic yards.

that would cost

`12*162.8=\text{ \$1953.6}`