stinkbugg3461 stinkbugg3461

14-06-2018
Mathematics

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What are the length and width of a rectangle if the length exceeds the width by 55 inches and the perimeter is 270 inches?

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altavistard altavistard

18-06-2018

Here, P = 2L + 2W, and L=W+55. Subbing W+55 for L in P = 2L + 2W, we get:

P = 2(W+55) + 2W = 270 in
2W + 110 + 2W = 270 in, or 4W = 160 in. Then W=40 in, and L=(40+55)in.

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