Solve the problem 9 A train ticket in a certain city is 300

Solve the problem. 9) A train ticket in a certain city is $3.00. People who use the train also have the option of purchasing a frequent rider pass for $18.00 each month. With the pass, each ticket costs only $2.25. 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.

Solution

Monthly cost with pass= monthly cost without pass

18+2.25 x= 3x

18= 0.75x

x= 18/0.75= 24

The train must be used 24 times in a month .