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3 November, 13:45

Tim is choosing between two cell phone plans that offer the same amount of free minutes. Cingular's plan charges $39.99 per minute with additional minutes costing $0.45. Verizon's plan costs $44.99 with additional minutes at $0.40. How many additional minutes will it take for the the two plans to cost the same

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  1. 3 November, 17:39
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    Answer: it will take 200 additional minutes for the two plans to cost the same.

    Step-by-step explanation:

    Let x represent the number of additional minutes it will take for the the two plans to cost the same.

    Cingular's plan charges $39.99 per minute with additional minutes costing $0.45. This means that the total cost of x additional minutes would be

    39.99 + 0.45x

    Verizon's plan costs $44.99 with additional minutes at $0.40. This means that the total cost of x additional minutes would be

    44.99 + 0.4x

    For the the two plans to cost the same, the number of additional minutes would be

    39.99 + 0.45x = 44.99 + 0.4x

    0.45x - 0.4x = 44.99 - 39.99

    0.05x = 10

    x = 10/0.05

    x = 200
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