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14 August, 16:19

The primeter of a rectangle is 30 inches. If its lengthis three times its length, find the dimensions

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  1. 14 August, 16:37
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    Perimeter = 30 inches

    Length = 3x

    Width = X

    P = 2L + 2W

    30 = 2 (3x) + 2 (X)

    30 = 6x + 2x

    30 = 8x

    30/8 = 8x/8

    3 6/8 = 3 3/4 = X

    X = 3.75 inches

    The width is 3.75 inches and red length would be 3 times as much or 3 (3.75) = 11.25 inches.
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