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A room measures 16 ft by 18 ft. The ceiling is 10 ft above the floor. The door is 3 ft by 7 ft. A gallon of paint will cover 78.1 ft 2. How many gallons of paint are needed to paint the room (including the ceiling and not including the door). Round your answer up to the next whole number.

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chaserbrooks15

Answer: 13 gallons

Explanation: the question was on my final exam review so I know that the right answer.

akravets0583

Answer:

Explanation:

you have 2 walls that will measure 16 x 8, 2 walls that will measure 21 x 8, a ceiling that measures 16 x 21.

calculate the area of each using L x W. Add them up, then subtract 21 for the area of the door.

Once you have that number, divide it by 72.5. That number is the number of gallons is the exact number you need, but round up to the next full gallon.

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