Question

A company rents water tanks shaped like a cylinders. Each tank has a diameter of 12 feet and a height of 3 feet. The cost is $2 per cubic foot. How much does it cost to rent one water tank?

Answer 1

`\$678.58`

Explanation:

step 1

Find the volume of the tank

we know that

The volume of a cylinder (water tank) is equal to

`V=\pi r^(2)h`

in this problem we have

`r=12/2=6\ ft` -----> the radius is half the diameter

`h=3\ ft`

substitute

`V=\pi (6^(2))(3)=339.29\ ft^(3)`

step 2

Find the cost

`339.29\ ft^(3)*2(\$)/(ft^(3))=\$678.58`