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Mathematics, 28.05.2020 09:57 ronny80

Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $23 monthly fee and charges an additional $0.15 for each minute of calls. The second plan has a $28 monthly fee and charges an additional $0.10 for each minute of calls. For how many minutes of calls will the costs of the two plans be equal?

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