Asked by George

The value of 25 coins, consisting of dimes and quarters, is $ 3.55. How many dimes are in the collection?

Answers

Answered by PsyDAG
Let x = # of dimes and y = # of quarters

x + y = 25

y = 25-x

10x + 25y = 355

Substitute 25-x for y in last equation and solve for x.

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