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1 July, 21:32

Suppose you have $55 in your bank account. You start saving $10 each week. Your friend has $20 in her account and is saving $15 each week. When will you and your friend have the same amount of money in your accounts?

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  1. 1 July, 21:54
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    The equation is:

    55 + 10 x = 20 + 15 x, where x is number of the weeks.

    55 - 20 = 15 x - 5 x

    35 = 5 x

    x = 35 : 5

    x = 7

    Answer:

    The same amount of money in both accounts will be after 7 weeks.
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