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3 January, 12:34

The length of a rectangle is six times it's width if the area of the rectangle is 600m2 find its perimeter

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  1. 3 January, 12:42
    0
    L = 6W

    Area A = LW = 600. So, 6W (W) = 600, W2 = 600/6 = 100, so W = 10. Then L = 600/10 = 60.

    Perimeter P = 2L + 2W = 2 (60) + 2 (10) = 120 + 20 = 140.
  2. 3 January, 12:50
    0
    A) l * w = 600

    B) l = w * 6

    Solving A) for length

    A) l = 600 / w

    B) l = w * 6

    600 / w = w * 6

    6w^2 = 600

    6w^2 - 600 = 0

    width = 10

    length = 60
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