SOLUTION: John's Piggyback contains dimes and quarters.There are 14 coins inside totaling $2.60. Let X represent the number of dimes Let Y represent the number of quarters

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Question 997965: John's Piggyback contains dimes and quarters.There are 14 coins inside totaling $2.60. Let X represent the number of dimes
Let Y represent the number of quarters
How many dimes and quarters does John have in his piggybank?

Answer by CubeyThePenguin(3113)   (Show Source): You can put this solution on YOUR website!
10x + 25y = 260
x + y = 14

Multiply the second equation by 10.

10x + 25y = 260
-10x - 10y = -140
------------------------
15y = 120
y = 8

There are 6 dimes and 8 quarters.

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