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23 April, 20:48

Martha made a rectangular blanket that had a perimeter of 18 feet it was 6 feet long how wide was it

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Answers (2)
  1. 23 April, 23:08
    0
    3 ft

    Step-by-step explanation:

    Perimeter is

    P = 2 (l+w)

    Substituting what we know

    18 = 2 (6+w)

    Divide each side by 2

    18/2 = 2 (6+w) / 2

    9 = 6+w

    Subtract 6 from each side

    9-6 = 6+w-6

    3 = w
  2. 24 April, 00:24
    0
    It's 3 ft wide because 6+6 is 12 and the perimeter is 18 and 18-12 is 6 so divide that by 2 is 3 for each side which all equals to 18
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