Posted by **Jane** on Monday, November 26, 2012 at 11:00am.

Joseph sold tickets to the school musical. He had 12 bills worth $175 for the ticketssold. If all the money was $5 bills, $10 bills, and $20 bills, how many of each bill did he have?

- math -
**Steve**, Monday, November 26, 2012 at 11:34am
if he had x,y,z bills of $5,$10,$20 respectively,

x+y+z = 12

5x+10y+20z = 175

A third equation would help, so we have to do some trial and error.

1 $5

5 $10

6 $20

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