SOLUTION: Wendy has 52 coins consisting of nickels and pennies. The value of the coins is $1.20, then how many of each type does she have?

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Question 178751: Wendy has 52 coins consisting of nickels and pennies. The value of the coins is $1.20, then how many of each type does she have?
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
let n and p be the number of nickles and pennies
:
n+p=52...........eq 1
.05n+.01p=1.2....eq 2
:
rewrite eq 1 to n=52-p and plug that value into eq 2
:
.05(52-p)+.01p=1.2
:
2.6-.05p+.01p=1.2
:
-.04p=-1.4
:
highlight%28p=35%29number of pennies
:
highlight%28n=52-35=17%29number of nickels