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18 January, 23:29

The length of a rectangle is 5 more than twice the width. the perimeter is 130 inches. what is te area

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Answers (2)
  1. 19 January, 01:45
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    2L + 2W = 130

    L = 2W+5

    2 (2W+5) + 2W = 130

    4W+10 + 2W = 130

    6W + 10 = 130

    6W = 120

    W = 20

    If the width is 20, then the length is twice that plus 5, or 45

    L = 45 and W = 20

    area = L*W or 900
  2. 19 January, 01:59
    0
    The length of a rectangle:

    L = 2 W + 5

    The perimeter:

    P = 2 L + 2 W

    130 = 2 · (2 W + 5) + 2 W

    130 = 4 W + 10 + 2 W

    130 - 10 = 6 W

    120 = 6 W

    W = 120 : 6

    W = 20 in

    L = 2 · 20 + 5

    L = 40 + 5

    L = 45 in.

    Finally the area:

    A = L · W

    A = 20 · 45

    A = 900 in²
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