Question

Each gallon of paint covers about 250 square feet. How many gallons of paint should Amelia buy to paint the walls?

Answer 1

To be able to determine how many gallons of paint should Amelia buy, we must first determine the total area of the walls to be painted and be divided by the area that each gallon of paint covers.

A.) Determining the total area of the walls to be painted.

Two walls are 26 ft. long and 9 ft. wide

The other wall is 18 ft. long and 9 ft. wide

We get,

`\text{ Total Area = (26 x 9) + (26 x 9) + (18 x 9)}`
`\text{ = 234 + 234 + 162}`
`\text{ Total Area = 630 ft.}^2`

B.) Let's determine how many gallons of paint will be used.

1 Gallon of Paint = 250 ft.²

We get,

`\text{ No. of Gallons of Paint = 630 (ft.}^2)\text{ x }\frac{1\text{ Gallon}}{250(ft.^2)}`
`\text{ = }(630)/(250)\text{ Gallons}`
`\text{ No. of Gallons of Paint = 2}.52\text{ Gallons }\approx\text{ 3.0 Gallons}`

Therefore, Amelia should buy 3 gallons of paint to paint the walls.