SOLUTION: If you have 34 coins, all nickels, dimes and quarters worth of $5.45. The number of quarters is equal to the combined number of nickels and dimes. How many of each are there?

Question 821437: If you have 34 coins, all nickels, dimes and quarters worth of $5.45. The number of quarters is equal to the combined number of nickels and dimes. How many of each are there?
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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x + y + z = 34
5x + 10y + 25z = 545
z = x + y
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put the system of linear equations into standard form
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x + y + z = 34
5x + 10y + 25z = 545
x + y - z = 0
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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answer:
x= nickels = 10
y= dimes = 7
z= quarters = 17
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Solve and graph linear equations:
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Solve quadratic equations, quadratic formula:
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Solve systems of linear equations up to 6-equations 6-variables:
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