Question

A gallon of latex paint can cover 600600 square feet. Maria has a rectangular room whose dimensions are 2222 feet by 1616 ​feet, with 88​-foot ceilings. How many gallon containers of paint does she need to buy to paint two coats on each​ wall?

Answer 1

3 gallons of paint

Explanation:

First we need to find the area of the longer walls. For that, multiply the length of the wall by the height.

2222 * 88 = 195,536

Now, the shorter walls.

1616 * 88 = 142,208

Now we multiply both numbers by four, then add them, as she is painting two of each wall twice.

195,536 * 4 = 782,144

142,208 * 4 = 568,832

782,144 + 568,832 = 1,350,976

Next, we divide that number by 600,600.

1,350,976 / 600,600 = 2.25

Now, we round up, as you can't buy part of a can, making the final answer 3.