SOLUTION: Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $19 monthly fee and charges an additional $0.13 for each minute of c
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Question 630321: Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $19 monthly fee and charges an additional $0.13 for each minute of calls. The second plan has an $11 monthly fee and charges an additional $0.17 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = number of minutes of calls
!st plan:
cost =
2nd plan:
cost =
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Make the costs for the 2 plans equal
For 200 minutes of calls, the plans are equal
check:
and
OK
