Question

A car and a truck left Washington, DC traveling in opposite directions. The car traveled 19 miles per hour faster than the truck, and at the end of 8 hours they were 1448 miles apart. What was the average speed of each vehicle?

Answer 1

let the velocity of the truck be V.

relative distance=relativevelocity*time

1448=(2v+19)/8
solve for v, the velocity of the truck. Then v+19 is the velocity of the car.