question in description

Question

The tooth fairy left little jenny 12 coins, all nickels and dimes totaling .95 cents. how many coins were nickles and how many were dimes 

Answer 1

I think you meant to say totaling $0.95 or 95 cents, not 0.95 cents.

 

n = number of nickels at $0.05 each

12 - n = number of dimes at $0.10 each

 

0.05n + 0.10(12 - n) = 0.95

 

Can you solve for n and finish from here?