Question

You wish to paint a storage shed. Its four walls measure 7 ft. high and 8 ft. wide each. If one gallon of paint covers 160 sq. ft., how many gallons of paint will you need?

Paint required = gallons.

Answer 1

1.4 gallons exactly or 2 gallon buckets

Answer 2

`1.4\ gallons`

Explanation:

Step 1

Find the area of one wall

Multiply the high by the wide

so

`A=7*8=56\ ft^(2)`

Step 2

Find the area of four walls

Multiply the area of one wall by four

`A=4*56=224\ ft^(2)`

Step 3

By proportion calculate how many gallons of paint are needed

`(1)/(160) (gallon)/(ft^(2))=(x)/(224) (gallons)/(ft^(2))\\ \\x=224/160\\ \\x=1.4\ gallons`