# Mary is decorating her bedroom and decides to paint three of the walls. Each of the walls measures 12 feet by 10 feet. If a quart of paint will cover 90 square feet, how many quarts does she need

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by scoolQ

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by scoolQ

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12ft x 10ft x 3walls = 360 sq. ft.

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Since you are given that a quart of paint will cover 90 sq ft then,

360sq.ft. x (1qt/90sq.ft.) =

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Therefore

120 ft.² × 3 = 360 ft.²