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March 27, 2017

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The length of a rectangle is twice the width. The perimeter is 84 cm more than its width. Find the dimensions.

  • Math - ,

    y = 2w
    2w+2y = w+84

    2w+4w = w + 84
    5w = 84
    w = 84/5
    so, y=168/5

    check:
    2(w+y) = 2(252/5) = 504/5 = 84/5 + 84

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