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8 September, 13:46

The weight of abe's dog can be found using the expression 2 (x+3), where x is the number of weeks. The weight of karen's dog can be found using the expression 3 (x-1), where x is the number of weeks. Will the dogs ever be the same weight?

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  1. 8 September, 14:46
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    9th week will have same weight

    Step-by-step explanation:

    f (x) = 2 * (x + 3) ... Abe's

    f' (x) = 3 * (x - 1) ... Karen's

    ∵ f (x) = f' (x) ... time of two dogs have the same weight

    2 * (x + 3) = 3 * (x - 1)

    2x + 6 = 3x - 3

    3x - 2x = 6 + 3

    x = 9
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