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14 October, 20:47

The perimeter of a rectangular piece of metal is 24 centimeters. it is 4 1/2 centimeters wide. how long is it

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Answers (2)
  1. 14 October, 21:43
    0
    P=24 (cm)

    width = 4 1/2 (cm)

    P = (a+b) * 2=24

    a - width

    b - length

    4.5+b=24/2=12

    b=12-4.5

    b=7,5

    Well, length is 7.5 cm
  2. 15 October, 00:18
    0
    7 3/4 centimeters long. 4 1/2 x 2 = 8 1/2 (width of both sides combined) 24 - 8 1/2 = 15 1/2 (length of both sides combined) 15 1/2 divided by 2 = 7 3/4 (length of one side)
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