SOLUTION: A collection of 56 coins has a value of $4.00. The collection contains only nickels and dimes. Find the number of dimes in the collection.

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Question 241802: A collection of 56 coins has a value of $4.00. The collection contains only nickels and dimes. Find the number of dimes in the collection.
Answer by Edwin McCravy(20064) About Me  (Show Source):
You can put this solution on YOUR website!
A collection of 56 coins has a value of $4.00. The collection contains only nickels and dimes. Find the number of dimes in the collection.

system%28N+%2B+++D+=++56%2C+5N+%2B+10D+=+400%29

Solve that and get N=32, D=24

Edwin