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16 September, 18:10

Marta and Kim are sisters. Five years ago Kim's age was twice as great as martas age. If Marta is no m years old, what expression represents Kim's age now?

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  1. 16 September, 19:57
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    y = 2m-5

    Kim's age now is y = 2m-5

    Step-by-step explanation:

    Let m represent martas age now and y represent Kim's age now

    Given;

    Five years ago Kim's age was twice as great as martas age.

    (y-5) = 2 (m-5)

    Solving for y;

    y-5 = 2m-10

    y = 2m-10+5

    y = 2m-5

    Kim's age now is y = 2m-5
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