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Allison has $1.60 in nickels and dimes. She has 11 more nickels than dimes. How many dimes and nickels does she have?
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Allison has $1.60 in nickels and dimes. She has 11 more nickels than dimes. How many dimes and nickels does she have?

User Badp
by
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1 Answer

4 votes
0.05n + 0.10d = 1.60
n = d + 11

0.05(d + 11) + 0.10d = 1.60
0.05d + 0.55 + 0.10d = 1.60
0.15d = 1.60 - 0.55
0.15d = 1.05
d = 1.05 / 0.15
d = 7 <=== 7 dimes

n = d + 11
n = 7 + 11
n = 18 <=== 18 nickels
User Utwang
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7.0k points
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