SOLUTION: I need help working this problem.
1.A student assistant at a university copy center has some nickels and dimes to use for change when students make copies. The value of the coins
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Question 157026: I need help working this problem.
1.A student assistant at a university copy center has some nickels and dimes to use for change when students make copies. The value of the coins is $7.40. There are 26 more dimes than nickels. How many of each kind of coin are there?
This is not from a text book.
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
.05x+.10(x+26)=7.40
.05x+.10x+2.60=7.40
.15x=7.40-2.60
.15x=4.80
x=4.80/.15
x=32 is the number of nickels.
32+26=58 dimes.
Proof:
.05*32+.10*58=7.40
1.60+5.80=7.40
7.40=7.40
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