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OpenStudy (anonymous):
9) The perimeter of a rectangle is 100 ft. and the length is 20 ft. What is the width?
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OpenStudy (anonymous):
perimeter = Lx2 + Wx2. so do Lenght = 20x2 = 40. now do 100 - 40 = 60. then do 60/2 = 30. so width = 30 ft
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