SOLUTION: Cathy has a collection of dimes and quarters. The number of dimes equals the number of quarters. She has a total of $2.80. How many of each coin does she have?
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Question 926564: Cathy has a collection of dimes and quarters. The number of dimes equals the number of quarters. She has a total of $2.80. How many of each coin does she have? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x = number of dimes
y = number of quarters
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x = y
10x + 25y = 280
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put the system of linear equations into standard form
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x - y = 0
10x + 25y = 280
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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 = number of dimes = 8
y = number of quarters = 8
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