SOLUTION: If jon has four dollars in dimes in nickels and he has seven more dimes than nickels, how many of each coin does he have.

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Question 365457: If jon has four dollars in dimes in nickels and he has seven more dimes than nickels, how many of each coin does he have.
Answer by amoresroy(361) About Me  (Show Source):
You can put this solution on YOUR website!
Let n = the number of nickels
n + 7 = the number of dimes
Equation
.05n + .10(n+7) = 4.00
.05n + .10n + .7= 4.00
.15n = 4.00 - .7
n = 3.30/.15
n = 22
n+7 = 29
Jon has 22 nickels and 29 dimes