The length of a rectangle is 3 times the width. The perimeter is 120 meters. Find the length and width.

Question

The length of a rectangle is 3 times the width. The perimeter is
120 meters. Find the length and width.

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Linh Đan 3 years 2021-09-05T03:47:35+00:00 2 Answers 17 views 0

Answers ( )

    0
    2021-09-05T03:49:13+00:00

    Let L = length, W = width and P =Perimeter

    L = 3W

    and

    P + 2(L + W) = 120

    L + W = 60

    Substitute

    3W + W = 60

    4W=60

    W=60/4

    W=15

    L+W=60

    L+15=60

    L=60-15

    L=45

    0
    2021-09-05T03:49:21+00:00

    Answer:

    is it from a text book

    Step-by-step explanation:

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