Question

Customers of a phone company can choose between two service plans for long distance calls. The first plan has an $18 monthly fee and charges an additional $0.08 for each minute of calls. The second plan has a $10 monthly fee and charges an additional $0.12 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?

Answer 1

The costs of the two plans would be equal with 200 minutes.

Explanation:

From the information given, you can write the following:

18+0.08x=10+0.12x, where x is the number of minutes of calls

Then, you can solve for x:

18-10=0.12x-0.08x

8=0.04x

x=8/0.04

x=200

According to this, the answer is that the costs of the two plans would be equal with 200 minutes.