Final answer:
To find how many trips can be made before the monthly pass is cheaper, the inequality 2x > 50 is used to determine the number of trips.
Step-by-step explanation:
To find how many trips can be made before the monthly pass is cheaper, we need to compare the cost of individual trips to the cost of the monthly pass. Let 'x' represent the number of trips.
The cost of 'x' trips can be represented as 2x. The inequality to find the number of trips is:
2x > 50.
To solve the inequality, we divide both sides by 2:
x > 25.
So, if you take more than 25 trips, the monthly pass is cheaper.