SOLUTION: A discount pass for a bridge cost $30 a month. The toll for the bridge is normally $5, but it is reduced to $3.50 for people who have purchased the discount pass. Determine the num

Question 398824: A discount pass for a bridge cost $30 a month. The toll for the bridge is normally $5, but it is reduced to $3.50 for people who have purchased the discount pass. Determine the number of times in a month the bridge must be crossed so that the total monthly cost without the discount pass is the same as the total monthly cost with the discount pass.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the number of times in a month the
bridge is crossed.
Let = monthly cost
With pass:

without pass:

-----------

The bridge must be crossed 20 times to make
the monthly costs equal
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