SOLUTION: The sum of Nickels, Dimes, and Quarters equal 6.25. There are a total of 85 coins. There are 3 times as many nickels than there are Dimes, find the amount of coins for each.

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Question 927021: The sum of Nickels, Dimes, and Quarters equal 6.25. There are a total of 85 coins.
There are 3 times as many nickels than there are Dimes, find the amount of coins for each.
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
x = nickels
y = dimes
z = quarters
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x + y + z = 85
5x + 10y + 25z = 625
x = 3y
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put the system of linear equations into standard form
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x + y + z = 85
5x + 10y + 25z = 625
x - 3y = 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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solution:
x = nickels = 60
y = dimes = 20
z = quarters = 5
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