SOLUTION: I don't get this. Is there a solution? Here is the question: Daniel has 30 coins. He only has dimes and nickels. The total value of the coins is $1.45. How many dimes and nickels d

Question 1188313: I don't get this. Is there a solution? Here is the question: Daniel has 30 coins. He only has dimes and nickels. The total value of the coins is $1.45. How many dimes and nickels dos Daniel have?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
I don't get this. Is there a solution? Here is the question: Daniel has 30 coins. He only has dimes and nickels. The total value of the coins is $1.45. How many dimes and nickels dos Daniel have?
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If they are all nickels it would be $1.50, so there's no solution.
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Using math:
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n + d = 30 ---> d = 30 - n
5n + 10d = 145
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Sub for d
5n + 10*(30-n) = 145
5n + 300 - 10n = 145
-5n = -155
n = 31
d = -1

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