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24 February, 23:46

The length of a rectangle is twice its width. if the perimeter is 72 meters, find the length and width of the rectangle

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  1. 25 February, 00:00
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    Length (l) = 2w

    width (w) = w

    Perimeter (P) = 2w+2l = 72 (simplify expression: divide each side by 2)

    P = w+l = 36 (plug in "2w" for "l")

    P = w + (2w) = 36

    P = 3w = 36 (divide each side by 3 to find the width)

    w = 12 units

    find length:

    l=2w

    l = 2 (12)

    l = 24 units

    Answer:

    The length of this rectangle is 24 units and the width is 12 units.
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