A gallon of paint costs $20 and covers 465 square feet. Three coats of paint are recommended for even coverage. The room to be painted is 12 feet high, 20 feet long, and 20 feet wide. How many gallons are needed to paint the walls?
Added by Steven C.
Step 1
First, we need to calculate the total surface area of the walls to be painted. We can do this by finding the area of each wall and adding them together. - The area of the first wall (12 feet high, 20 feet long) is 12 x 20 = 240 square feet. - The area of the Show more…
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