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Semenov [28]
3 years ago
15

Ron has 13 coins with a total value of $2.25. the coins are nickels and quarters. how many of each coin does he have

Mathematics
2 answers:
Nikolay [14]3 years ago
8 0
8 quarters = $2.00
5 nickles = $0.25

Total ... 13 coins = $2.25
alukav5142 [94]3 years ago
5 0
N-nickels, q-<span>quarters

n+q=13=>n=13-q

0.25q+0.05n=2.25
0.25q+0.05(13-q)=2.25
0.25q+0.65-0.05q=2.25
0.20q=2.25-0.65
0.20q=1.6
q=1.6:0.2
q=8
n=13-8
n=5

</span>
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