SOLUTION: I have 10 coins made up .05-cent and .10-cent coins. If these ten coins are worth .70 cents, how many more .05-cent coins than .10-cent coins do I have?
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Question 843463: I have 10 coins made up .05-cent and .10-cent coins. If these ten coins are worth .70 cents, how many more .05-cent coins than .10-cent coins do I have?
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
With ten coins and the last digit of .70 being zero
we need to have an even number of nickles.
Try 10 dimes, too much
8 dimes and 2 nickles, too much
6 dimes and 2 nickles, just right, their sum is $0.70
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