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a woman has $1.70 in dimes and nickels.She has 5 more dimes than nickles. How many nickles does she have

Sagot :

A630061087idn
d=5+n
0.1(5+n)+0.05n=1.7
0.5+0.15n=1.7
0.15n=1.2
n=8
d=13
therefore 8 nickles and 13 dimes.
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