SOLUTION: Bill has a collection of 65 nickels and dimes. Their total worth is $5.50. Find how many nickels and dimes Bill has.

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Question 301375: Bill has a collection of 65 nickels and
dimes. Their total worth is $5.50. Find how
many nickels and dimes Bill has.
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
n%2Bd=65 Multiply this by -.10
.05n%2B.10d=5.50
_______________
-.10n-.10d=-6.5
.05n%2B.10d=5.50add together
-.05n=-1
n=20
____
n%2Bd=65
20%2Bd=65
d=45
20 nickels and 45 dimes