SOLUTION: I have $480.00 in ones, tens and fives. I have the same amount of each bill. How many dollar bills do I have?

Question 937878: I have $480.00 in ones, tens and fives. I have the same amount of each bill. How many dollar bills do I have?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = ones
y = fives
z = tens
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x + 5y + 10z = 480
x = y
y = z
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put the system of linear equations into standard form
---
x + 5y + 10z = 480
x - y = 0
y - z = 0
---
copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
solution:
x = 30
y = 30
z = 30
---
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