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29 December, 14:13

The length of a rectangle is five less than twice it's width. if the perimeter of the rectangle is 56 inches, find its dimensions.

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Answers (2)
  1. 29 December, 16:48
    0
    length is 17 inches ...
  2. 29 December, 17:23
    0
    P = 2 (L + W)

    P = 56

    L = 2W - 5

    56 = 2 (2W - 5 + W)

    56 = 2 (3W - 5)

    56 = 6W - 10

    56 + 10 = 6W

    66 = 6W

    66/6 = W

    11 = W < = = = width is 11 inches

    L = 2W - 5

    L = 2 (11) - 5

    L = 22 - 5

    L = 17 < = = = length is 17 inches
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