SOLUTION: Jasmine has $0.70, all 5 cent and 10 cent coins. She has two more 5 cent than 10 cent coins. How many nickels and dimes does jasmine have?

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Question 1006225: Jasmine has $0.70, all 5 cent and 10 cent coins. She has two more 5 cent than 10 cent coins. How many nickels and dimes does jasmine have?
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
n = number of 5-cent coins
d = number of 10-cent coins

5n + 10d = 70
n = d + 2

Substitute the second equation into the first.

5(d + 2) + 10d = 70
5d + 10 + 10d = 70
15d = 60
d = 4

Jasmine has 4 dimes and 6 nickels.