A motorist pays $4.75 per day in tolls to travel to work. He also has the option to buy a monthly pa

Discussion in 'Calculator Requests' started by math_celebrity, Sep 2, 2020.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    A motorist pays $4.75 per day in tolls to travel to work. He also has the option to buy a monthly pass for $80. How many days must he work (i.e. pass through the toll) in order to break even?

    Let the number of days be d. Break even means both costs are equal. We want to find when:
    4.75d = 80

    To solve for d, we type this equation into our search engine and we get:
    d = 16.84 days

    We round up to an even 17 days.
     

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