Question

In a change jar, Tom has nickels and dimes. The number of nickels is two times the number of dimes and the total amount of money in the jar is $1.20. How many dimes are in the jar?

Answer 1

Nickel = 5 cents
Dime = 10 cents

Let number of nickels be N.
Number of dimes = 1/2 (Number of Nickels) = 1/2 N

Total Money = Value of Nickels + Value of Dimes
1.20 = (N)(0.05) + (1/2N)(0.1)
1.20 = 0.05N + 0.05N
N = ?

Answer 2

Thanks for your help