Homework Answers
Let x be the number of nickels and y be the number of
dimes
x+y=80 .....1)
and x*0.05+y*0.10=6.80 .....2)
From 1),
y=80-x
Substituting the value of y in 2), we get
x*0.05+(80-x)*0.10=6.80
=>x=24
Hence, y=56
x=24 nickels
y=56 dimes
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