I have to paint one side of a wall. The wall is 12 meters tall and 120 meters long. Each gallon of paint covers 150 square feet. 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?
I have to paint one side of a wall. The wall is 12 meters tall and 120 meters long.
Each gallon of paint covers 150 square feet. 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?
1 ft = 0.3048 m ==>> 1 m = (1 / 0.3048) ft = 3.2808 ft
Height = (12 m) • (3.2808 ft/m) = 39.37 ft
Length = (120 m) • (3.2808 ft/m) = 393.70 ft ==>> Area = (39.37 ft) • (393.70 ft)
= 15,499.97 ft2
Paint req'd ==>> (15,499.97 ft2) / (150 ft2/gallon) = 103.33 gal
You can't buy just part of a gallon, so you will have to buy 104 gallons
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