Each gallon of paint covers 200 square feet. I have to paint one side of a wall that is 85 meters tall and 150 meters long. If a foot is approximately 0.3048 meters, then what is the smallest whole number of gallons I can buy and have enough paint to cover the whole wall?
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Each gallon of paint covers 200 square feet. I have to paint one side of a wall that is 85 meters tall and 150 meters long. If a foot is approximately 0.3048 meters, then what is the smallest whole number of gallons I can buy and have enough paint to cover the whole wall?
85 meters / 0.3048 m/ft = 278.87 ft
150 meters / 0.3048 m/ft = 492.13 ft
so the surface of the wall is 278.87 ft • 492.13 ft = 137,240.29 ft2
the amount of paint required is 137,240.29 ft2 / 200 ft2/gallon = 686.20 gal
you can't buy just 0.20 gallon, so you have to buy 687 gallons of paint
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