Question

Customers of a phone company can choose between two service plans for long distance calls. The first plan has an $18 one-time activation fee and charges 10 cents a minute. The second plan has no activation fee and charges 15 cents a minute. After how many minutes of long distance calls will the costs of the two plans be equal?

Answer 1

Try to make two equations, one for each phone company.

First plan:

y = .10x + 18

Second plan:

y = .15x

Try plugging in numbers until the two equations have the same y. If you need anymore explanations, just respond back.

Hope I helped!