Mary is traveling cross country on a road trip. So far, Mary has traveled 200 miles in her car and 200 miles by train. The car traveled at a
rate that was 30 miles per hour slower than the train.
Mary modeled the total time for her trip with the following expression.
200 + 20030
What does x - 30 represent in this situation?

Respuesta :

Answer:

x-30 is the equation used to determine the car's speed in mph.

Step-by-step explanation: