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11 September, 17:38

Card has three times as many ten dollar bills as 5 dollar bills, she has a total of 350. how many five dollar bills Does she have

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  1. 11 September, 19:18
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    She has 10 five dollar bills. Set up the system using x as 5 dollar bills and y as 10 dollar bills:

    5x + 10y = 350

    3x = y

    Substitute in 3x for y in the first equation and solve
  2. 11 September, 21:35
    0
    She has ten five dollar bills!
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