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16 May, 21:35

The rectangle has a perimeter p of 58 inches. the length l is one more than 3 times the width w. write and solve a system of linear equations to find the length and width

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  1. 16 May, 21:55
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    P = 2 (L + W)

    P = 58

    L = 3W + 1

    58 = 2 (3W + 1 + W)

    58 = 2 (4W + 1)

    58 = 8W + 2

    58 - 2 = 8W

    56 = 8W

    56/8 = W

    7 = W < = = = width is 7 inches

    L = 3W + 1

    L = 3 (7) + 1

    L = 21 + 1

    L = 22 < = = = length is 22 inches
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