SOLUTION: Elaine has 50 coins,all nickels and dimes,that have a total value of $3.40. How many of her coins are nickels?
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Question 815394: Elaine has 50 coins,all nickels and dimes,that have a total value of $3.40. How many of her coins are nickels?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
hint: solve the system
n+d = 50
0.05n+0.10d = 3.40
where
n = number of nickels
d = number of dimes
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