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4 November, 05:29

Michael has 40 feet of fencing to make a rectangular dog run for his dog, Buddy. One side of the run will be 5 feet long. How long will the other side be?

A. 20 feet

B. 15 feet

C. 10 feet

D. 8 feet

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Answers (1)
  1. 4 November, 05:52
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    P = 2 (L + W) ... this is the perimeter of a rectangle

    P = 40

    L = 5

    40 = 2 (5 + W)

    40 = 10 + 2W

    40 - 10 = 2W

    30 = 2W

    30/2 = W

    15 = W < = = = ur answer is 15 ft
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