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6 March, 09:39

The width of a rectangle is 9 inches less than the length. The perimeter is 74 inches. Find the length and the width.

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  1. 6 March, 10:22
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    perimeter = 2L + 2W

    from the problem we know P = 74 and W=L-9

    so 74 = 2L + 2W

    74 = 2L+2 (L-9)

    74 = 2L + 2L - 18

    74 = 4L-18'

    92 = 4L

    L=23

    W=14
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