SOLUTION: I have 90 coins in a piggy bank, some dimes and some nickels. When I count the change I have $15.10. How many dimes and nickels do I have?

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Question 948091: I have 90 coins in a piggy bank, some dimes and some nickels. When I count the change I have $15.10. How many dimes and nickels do I have?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: Solve the system

system%28n%2Bd=90%2C0.05n%2B0.10d=15.10%29

where n is the number of nickels and d is the number of dimes.