SOLUTION: In a collection of dimes and nickels, there are 36 coins. The total value of the coins is $2.90. How many coins of each type are there?

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Question 890991: In a collection of dimes and nickels, there are 36 coins. The total value of the coins is $2.90. How many coins of each type are there?
Answer by harpazo(655) About Me  (Show Source):
You can put this solution on YOUR website!
Let d = dimes

Let n = nickels

d + n = 36
0.10d + 0.05n = 2.90
You have a system of linear equations in two variables.
Use the substitution method to find d and n.