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March 27, 2017

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A rectangle has length and width in the ratio of 5:9. If the perimeter is 280, what is the length of the rectangle?

  • geometry - ,

    let the width be 5x and the length 9x

    P = 2l + 2w = 10x + 18x = 28x

    28x = 280
    x = 10

    width is 50, length is 90

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