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22 December, 17:54

George is putting trim around his rectangular deck, including the gate. He will need 42 feet of trim to do the entire deck. If the deck is 12 feet long, how wide is the deck?

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  1. 22 December, 21:18
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    Perimeter = 2L + 2W

    42 = 2 (12) + 2W

    42 = 24 + 2W

    -24 - 24

    18 = 2W

    /2 / 2

    9 = W

    The answer is 9 feet wide
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