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posted by Melanie on Tuesday, December 6, 2011 at 10:16pm.
Length of a rectangle is 13 cm less than 5 times it's width. Its area is 28 square cm. Find dimensions of rectangle
L = 5W-13 LW = 28 (5W-13)W = 28 5W^2 - 13W - 28 = 0 (5W+7)(W-4) = 0 so, W=4 L = 5*4-13 = 7
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