SOLUTION: There are 13 more nickels than dimes and it equals 3.20

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Question 55719: There are 13 more nickels than dimes and it equals 3.20
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
There are 13 more nickels than dimes and it equals 3.20
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Let number of dimes be "x"; value of these is 10x cents.
Number of nickels is "x+13" ; value of these is 5(x+13)=5x+65 cents
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EQUATION:
value + value = 320 cents
10x + 5x+65= 320
15x= 255
x= 17 (number of dimes)
x+13 = 30 (number of nickels)
Cheers,
Stan H.