alg 1

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the length of a rectangular garden is 8 feet longer than the width. The garden is surrounded by a 4-foot sidewalk. the sidewalk has an area of 320 square feet. find the dimensions of the garden.

please help

  • alg 1 -

    the garden is w by w+8, so the sidewalk has area
    2(4w+4(w+8))+4*4^2 = 320
    w = 12

    The garden is 12x20

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