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19 December, 00:31

The width of a rectangle is 2/3 the length. the perimeter of the rectangle is 15 centimeters. what is the length of the rectangle

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  1. 19 December, 01:10
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    Lenght is 4 1/2 cm

    P=2L + 2W

    15cm = 2L + 2 (2/3L)

    15cm = 2L + 4/3L

    15cm = 2 4/3 L

    15cm : 2 4/3 = 2 4/3L : 2 4/3

    4 1/2cm = L

    Check

    P=2L + 2W

    P=2 (4.5) + 2 (3)

    15 = 9 + 6

    15=15
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