SOLUTION: Sam has $2.25 all in nickels and dimes. If he has a total of 36 coins, how many nickels and dimes does Sam have?

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Question 956771: Sam has $2.25 all in nickels and dimes. If he has a total of 36 coins, how many nickels and dimes does Sam have?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
N%2BD=36
5N%2B10D=225
Multiply the first equation by 5 and subtract it from the second.
5N%2B10D-5N-5D=225-180
5D=45
D=9
So then,
N%2B9=36
N=27
27 nickels and 9 dimes