SOLUTION: There are 10 coins in a jar. Some are dimes and the rest are nickels. The coins are worth a total of 70 cents. Which system of equations represents the situation?

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Question 1012728: There are 10 coins in a jar. Some are dimes and the rest are nickels. The coins are worth a total of 70 cents. Which system of equations represents the situation?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Call the number of dimes and nickels, d and n.
Then we can write
d + n = 10 and the value equation
10d + 5n = 70