Question 378750
let nickels be x
dimes be y
x+y = 26............1
..
5x+10y=175..........2
multiply (1) by -5
-5x-5y=-130
add this to (2)
10y-5y=175-130
5y=45

/5
y = 9 number of dimes

x= 26-9=17 number of nickels
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m.ananth@hotmail.ca