math

A bank teller has some five-dollar bills and some twenty-dollar bills. The teller has 10 more of the twenties. The total value of the money is $ 850. Find the number of five-dollar bills that the teller has.

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  1. 5f + 20(f+10) = 850
    25f = 650
    f = 26

    so, 26x$5 and 36x$20

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  2. what is the least number of bills you can use to make 23 dolers what bills are thay

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