You can pay a daily entrance fee of $3 or purchase a membership for the 12 week summer season for $8

Discussion in 'Calculator Requests' started by math_celebrity, Aug 19, 2018.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    You can pay a daily entrance fee of $3 or purchase a membership for the 12 week summer season for $82 and pay only $1 per day to swim. How many days would you have to swim to make the membership worthwhile?

    Set up cost equations:

    Daily entrance fee:
    3d where d is the number of days of membership

    Membership fee
    82 + 1d

    Set them equal to each other
    82 + 1d = 3d

    Subtract d from each side:
    2d = 82

    Divide each side by 2
    d = 41
     

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