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29 February, 20:52

The length of a rectangle is 5 cm longer than twice the length of the with. Is the perimeter of the rectangle is 88 cm what is the width?

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Answers (2)
  1. 29 February, 20:54
    0
    Length (L) = 2w + 5

    width (w) = w

    Perimeter (P) = 2L + 2w

    88 = 2 (2w + 5) + 2 (w)

    88 = 4w + 10 + 2w

    88 = 6w + 10

    78 = 6w

    13 = w

    Answer: 13 cm
  2. 29 February, 20:55
    0
    The width is 13 cm.

    l=2w+5

    88=2l+2w

    From there it's just solving for w.

    One way to do that is by using the first equation to put the second equation in terms of only w.
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