Posted by **Anonymous** on Saturday, April 28, 2007 at 4:00am.

Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. How many of each bill does Anna have? is this how i do this?

x+y=12

5x+10y=100

y=12-x

5x+10(12-x)

5x+120-10x=100

5x-10x=2-5x=20

x4

y8

Looks good to me.

Matt

## Answer this Question

## Related Questions

- algebra concept 1 - 1. Anna has 12 bills in her wallet, some $5 and some $10. ...
- math help, correction - Anna has 12 bills in her wallet, some $5 and some $10. ...
- Math - You have six $1 bills, eight $5 bills, two $10 bills, and four $20 bills ...
- Math - You have six $1 bills, eight $5 bills, two $10 bills, and four$20 dollar ...
- math (please check answer) - 10. You have six $1 bills, eight $5 bills, two $10 ...
- Algebra Concept check - 1. Anna has 12 bills in her wallet, some $5 and some $10...
- Math - you have four $1 bills, two $5 bills, five $10 bills, and five $ 20 bills...
- Algebra - For a board game there is 3 kinds of bills. There are 11 more $2 bills...
- math - Please show me how to solve: Sharon has some one-dollar bills and some ...
- MATH - You have five $1 bills, four $5 bills six $10 bills and three $20 bills. ...

More Related Questions