40 mph
If you drove 20 miles at 55 miles per hour, it would take you 21 minutes 49.09 seconds. This is equal to 21.82 minutes or 0.3636 hours.
You drove 34 miles in 30 minutes at 68mph
Janice was driving 60 miles per hour.
30 milesif she was driving at a rate of 40 miles each hour, and she drove for 3/4 of an hour (45 minutes), then she would have driven 3/4 of 40 miles, which is 30 miles.
34 miles driving at 70mph requires 29.1 minutes.
The driving distance from San Antonio TX to Johnson City TX is 64 miles per Map Quest. The driving time per Map Quest is 1 hour and 9 minutes.
The driving distance between Johnson City, TN and Sevierville TN is 95 miles via I-81 per MapQuest. The driving time per MapQuest is 1 hour and 33 minutes.
50 miles = 60 minutes 5 miles = 6 minutes 15 miles = 18 minutes
The driving distance from Memphis TN to Johnson City TN is 496 miles via I-40 E per MapQuest. The driving time per MapQuest is 7 hours and 30 minutes.
Janice was driving at 60 miles per hour. The way you figure this is to first look at Tom's speed. He was doing 90 mph for 20 minutes, so when he caught Janice, he had gone 1/3rd of an hour, or 1/3rd of his speed, or 30 miles. Janice had been driving for 10 minutes before Tom left, so she had driven 30 minutes total, and had gone 30 miles. Janice was traveling at a mile a minute, or 60 miles an hour. Good luck with your homework.
128 miles in three hours.
The driving time would depend on where you started in Tennessee. The driving distance from Nashville, Tennessee to Las Vegas, Nevada is 1792 miles per MapQuest. The driving time at 45 miles per hour would be 39 hours and 49 minutes.