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a rectangular parking lot has a length that is 10 yards greater than the width. the area of the parking lot is 200 square yards.find the length and the width

  • math -

    the equation you use is:
    200=w(10+w)
    200=10w+w^2
    w^2+10w-200 = 0
    (w+20)(w-10)= 0
    w = -20 or 10
    it has to be positive so the answer is 10.
    The width is 10 yards and the length is 20 yards

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