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Jeff has 20 five-dollar and ten-dollar bills in his wallet. The total value of these bills is $125. How many bills of each denomination does he have?

 Apr 6, 2021
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f = 5 bills                          value =  5f

t = 10 bills = 20-f              value =  10(20-f)                    summed = 125

 

5f         +       10(20-f)         = 125

-5f  = -75          You can take it from here .....

 Apr 6, 2021
edited by ElectricPavlov  Apr 6, 2021

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