Question

Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $25 monthly fee and charges an additional $0.10 for each minute of calls. The second plan has a $12 monthly fee and charges an additional $0.14 for each minute of calls For how many minutes of calls will the costs of the two plans equal

Answer 1

The amount of minutes of calls in which the costs of the two plans equal is 325.

Explanation:

To be able to find the amount of minutes of calls in which the cost of the two plans equal, you have to write an expression in which the price of the first and the second plan are the same an solve for the number of minutes:

25+0.10x=12+0.14x, where x is the number of minutes of calls.

Now, you can solve for x:

25-12=0.14x-0.10x

13=0.04x

x=13/0.04

x=325

According to this, the answer is that the amount of minutes of calls in which the costs of the two plans equal is 325.