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 1048 miles apart. What was the average speed of each vehicle?
Accepted Solution
A:
Answer:Step-by-step explanation:At the end of 8 hours, the car and truck were 1048 miles apart. So they were traveling 1048/8 = 131 miles per hour apart.The car traveled 19 miles per hour faster than the truck. So car speed = truck speed + 19Substituting, truck speed + truck speed + 19 = 1312x truck speed = 112Truck speed = 56 miles per hourCar speed = 56 + 19 = 75 miles per hour