SOLUTION: George saves dimes and nickels for tolls. If he has 28 coins worth 2.60, how many are nickels and how many are dimes. Thank you
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Question 265132: George saves dimes and nickels for tolls. If he has 28 coins worth 2.60, how many are nickels and how many are dimes. Thank you
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
N+D=28 OR N=28-D
.05N+.10D=2.60
.05(28-D)+.10D=2.60
1.40-.05D+.10D=2.60
.05D=2.60-1.40
.05D=1.20
D=1.20/.05
D=24 DIMES.
N=28-24
N=4 NICKELS.
PROOF:
.05*4+.10*24=2.60
.20+2.40=2.60
2.60=2.60
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