SOLUTION: Etienne emptied his collection of nickels and dimes on his cot. If his 38 coins were worth $3.25, how many coins of each type did he have?

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Question 282925: Etienne emptied his collection of nickels and dimes on his cot. If his 38 coins were worth $3.25, how many coins of each type did he have?
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
n+d=38
0.05n+0.10d=3.25


n+d=38
5n+10d=325


-5n-5d=-190
5n+10d=325
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5d=135

d=27

n+d=38 ---> n+27=38 ---> n=11

Answer: 11 nickels and 27 dimes