The family trip to Grandma's consisted of both a train ride

Last updated: 7/4/2022

The family trip to Grandma's consisted of both a train ride and a car ride. The average speed of the train ride was 68 miles per hour, and the average speed of the car ride was 55 miles per hour. The entire trip lasted 7 hours. Let x be the number of hours the train ride lasted. Write an expression for the total distance of the trip, in miles.