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the length of a rectangle is 8 in more than its width. the perimeter of the rectangle is 54 cm. what are the width and length of the rectangle?

2 answers

2 w + 2(w+8) = 54

4 w + 16 = 54

4 w = 38

You know:

l = w + 8

P = 54 = 2(w + l)

plug w + 8 in to the perimeter equation

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