SOLUTION: A vending machine has a total of P2060 in P10, P20 and P50 bills. The number of P20 bills is 5 more than the number of P50 bills and the number of P10 bills is four less than thric

Algebra ->  Finance -> SOLUTION: A vending machine has a total of P2060 in P10, P20 and P50 bills. The number of P20 bills is 5 more than the number of P50 bills and the number of P10 bills is four less than thric      Log On


   

Question 1011708: A vending machine has a total of P2060 in P10, P20 and P50 bills. The number of P20 bills is 5 more than the number of P50 bills and the number of P10 bills is four less than thrice the number of P50 bills. How many of each type does the vending machine contain?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
How Many   These bills
x          P10
y          P20
z          P50


system%28x%2By%2Bz=2060%2Cy=z%2B5%2Cx=3z-4%29

How you handle the system is your choice, depending on other instructions about what you are studying. Look for something obvious and maybe you will find it, like the last two equations are both 'variable' in terms of z.