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31 January, 08:30

Jack is 4 years older than George. George is 10 years younger than Sally. Write a function rule that represents Jack's age,"j", as a function of Sally's age, "s".

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  1. 31 January, 09:57
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    Sally: s

    George: s - 10

    Jack: George + 4 - -> (s - 10) + 4 - -> s - 6

    Answer: j = s - 6
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