Question

Given these facts, determine how many cans of paint you would need to buy to paint 2 walls.

1st wall: 20 ft. x 8ft.
2nd wall: 40ft. x 8ft.
1 can will cover 200 square feet of wall.

Answer 1

3 cans

Explanation:

A = lw

a = 20 x 8 = 160
`ft^(2)`

a = 40 x 8 = 320
`ft^(2)`

Together this is 480
`ft^(2)`

I would need 3 cans.