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9 October, 17:38

Joni's hair is 13 inches long and grows at an average rate of ⅔ in per month. Her friend Kate's hair is 16 inches long and grows at an average rate of ½ in per month. How many months will pass before the two friends have the same hair length?

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  1. 9 October, 21:20
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    18

    Step-by-step explanation:

    13 + (⅔) t = 16 + (½) t

    (⅔ - ½) t = 3

    t/6 = 3

    t = 18
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