Question

A cash register contains $20 bills and $100 bills with a total value of $1460. if there are 21 bills total, then how many of each does the register contain?

Answer 1

8 $20 bills

13 $100 bills

Explanation:

x=# of $20 bills

y=# of $100 bills

x+y=21 --> y=-x+21

20x+100y=1460

20x+100(-x+21)=1460

20x-100x+2100=1460

-80x=-640

x=8

-8+21=13

y=13

Answer 2

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Explanation: