algebra

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a building in a city has a rectangular base. the lenght of the base measures 70 ft less than twice the width. the perimeter of this base is 820 ft.

  • algebra -

    P = 2L + 2W

    820 = 2(W - 70) + 2W

    820 = 4W - 140

    820 - 140 = 4W

    680/4 = W

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