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17-09-2016
Mathematics

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a rectangular parking lot has a length that is 15 yards greater than the width. the area of the parking lot is 450 square yards. find the length and the width.

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nobillionaireNobley nobillionaireNobley

19-09-2016

L = 15 + W
Area = L x W
450 = (15 + W)W = 15W + W^2
W^2 + 15W - 450 = 0
(W - 15)(W + 30) = 0
W = 15
L = 15 + 15 = 30

length = 30 yards and width = 15 yards.

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