Question

A coin collector has $2.35 in dimes and nickels. She has four more dimes than nickels. How many nickels does she have?

The coin collector has
___ nickels.

Answer 1

13 nickles

Explanation:

x= dimes

y= nickles

.1x+.05y=2.35

x-4=y

subsituting this...

.1x+.05(x-4)=2.35

.1x+.05x-.2=2.35

.15x=2.55

x=17

17-4=y

13=y

13 nickels