SOLUTION: 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? YIKES please help me with this one.

Algebra ->  Trigonometry-basics -> SOLUTION: 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? YIKES please help me with this one.      Log On


   

Question 104031: 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?
YIKES please help me with this one.
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
let x=fives so 12-x=tens

5x+10(12-x)=100 ... 5x+120-10x=100