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20 May, 10:56

Chang currently has $42 in savings. He had been saving $7 each week. Yesterday he spent $77 of the savings. For how many weeks had he been saving?

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  1. 20 May, 11:20
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    Answer: Chang has been saving for 17 weeks.

    Step-by-step explanation: Chang is left with $42 and he/she spent $77

    Which means the total amount was $42+$77=$109

    We have to divide $109 by $7 to get the the number of weeks he/she invested.
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