math

the perimeter of a rectangle is twice the sum of its length and its width. the perimeter is 40 meters and its lenth is 2 meters more then twice its width. what is the length?

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  1. P = 2(L + W) = 40m,
    P = 2L + 2W = 40,

    L = (2W + 2)m,
    P = 2(2W + 2) + 2W = 40,
    4W + 4 + 2W = 40,
    6W = 36,
    W = 6m.

    L = 2W + 2 = 2*6 + 2 = 14m.

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