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March 25, 2017

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A train ticket in a certain city is $2.00. People who use the train also have the option of puchasing a frequent rider pass for $17.25 each month. With the pass, each ticket costs only $1.25. Determine the number of times in a month the train must be used so that the total monthly cost without the pass is the same as the total monthly cost with the pass.

  • math - ,

    Without the pass, the rider pays 2.00 * T

    With the pass the rider pays 17.25 + 1.25*T

    Set the two equal to each other, and solve for T

    2.00 * T = 17.25 + 1.25 * T

    where T is the number of tickets

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