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30 March, 18:29

Alex has $20, and ellen has $12. alex is saving $3 per day, and ellen is saveing $5 per day. after how many days will alex and ellen have the same amount of money?

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  1. 30 March, 19:41
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    X - the number of days;

    20 + 3 x = 12 + 5 x

    20 - 12 = 5 x - 3 x

    8 = 2 x

    x = 8 : 2

    x = 4

    Answer: After 4 days they will have the same amount of money.

    Alex : 20 + 4*3 = 20 + 12 = $32

    Ellen: 12 + 4 * 5 = 12 + 20 = $32
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