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19 December, 22:51

A building in a city has a rectangular base. The length of the base measures 70ft less than twice the width. The perimeter of the base is 910 ft. What are the dimensions of the base?

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  1. 19 December, 22:56
    0
    192.5+262.5+192.5+262.5 = 910
  2. 19 December, 22:59
    0
    Base=2x-70

    width=x

    perimeter of a rectangle=2 (base) + 2 (width)

    We can suggest the next equation:

    2 (2x-70) + 2x=910

    4x-140+2x=910

    6x=910+140

    6x=1050

    x=1050/6

    x=175

    base: 2x-70=2 (175) - 70=350-70=280

    Answer,: the length of the base would be 280 ft.
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