SOLUTION: Sam has $3.30 in quarters and dimes, and the total number of coins is 18. How many quarters and how many dimes?
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Question 1103568: Sam has $3.30 in quarters and dimes, and the total number of coins is 18. How many quarters and how many dimes?
Answer by josgarithmetic(39799) (Show Source): You can put this solution on YOUR website!
q and d
Multiply the coin count equation by 2.
This is that system:
Continue one-step into Elimination Method.
------------ten quarters
therefore ---------eight dimes
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