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7 August, 00:46

The length of a rectangle is three more than it's width. The perimeter is 42 inches. Write an equation to find the length and width.

Is the correct answer

W = 9 in and L = 12in?

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Answers (1)
  1. 7 August, 01:26
    0
    Width = 9 inches, length = 12 inches.

    Step-by-step explanation:

    Let the width = x inches, then its length x+3 inches.

    Perimeter = 2x + 2 (x + 3) inches so

    2x + 2 (x + 3) = 42

    4x + 6 = 42

    4x = 36

    x = 36/4 = 9

    So the width is 9 in and length = 9 + 3 = 12 inches.

    You are correct.
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