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

1 dime = 2 nickles
.10 + .10 = .20

2 dimes = 4 nickels
.20 + .20 = .40

3 dimes = 6 nickels
.30 + .30 + .60

4 dimes = 8 nickels
.40 + .40 = .80

5 dimes = 10 nickels
.50 + .50 = 1

6 dimes = 12 nickels
.60 + .60 = 1.20

So 6 is your answer.

Answer 2

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