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.
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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