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?
--------------------
If they are all nickels it would be $1.50, so there's no solution.
=====
Using math:
---
n + d = 30 ---> d = 30 - n
5n + 10d = 145
---
Sub for d
5n + 10*(30-n) = 145
5n + 300 - 10n = 145
-5n = -155
n = 31
d = -1