SOLUTION: José has $3.00 in nickels and dimes. He has nine more nickels than dimes. How many of each coins he have ?

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Question 949159: José has $3.00 in nickels and dimes. He has nine more nickels than dimes. How many of each coins he have ?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
5N%2B10D=300
N=9%2BD
Substituting,
5N%2B10%289%2BD%29=300
5N%2B90%2B10D=300
15D=210
D=14
So then,
N=14%2B9
N=23
23 nickels and 19 dimes