Answer:
To determine which cars are driving at or below the speed limit of 65 miles per hour, we can calculate the average speed for each car and compare it to the speed limit.
Let's calculate the average speeds for each car:
1. Car driving 432 miles in 6 hours:
Average speed = 432 miles / 6 hours = 72 miles per hour
2. Car driving 560 miles in 7 hours:
Average speed = 560 miles / 7 hours = 80 miles per hour
3. Car driving 204 miles in 3 hours:
Average speed = 204 miles / 3 hours = 68 miles per hour
4. Car driving 208 miles in 4 hours:
Average speed = 208 miles / 4 hours = 52 miles per hour
5. Car driving 130 miles in 2 hours:
Average speed = 130 miles / 2 hours = 65 miles per hour
6. Car driving 275 miles in 5 hours:
Average speed = 275 miles / 5 hours = 55 miles per hour
Based on these calculations, the cars that are driving at or below the speed limit of 65 miles per hour are:
- Car driving 130 miles in 2 hours
- Car driving 204 miles in 3 hours
Therefore, the correct responses are:
- a car driving 130 miles in 2 hours
- a car driving 204 miles in 3 hours