90 miles in 20 minutes = 90 miles in (1/3) hours
= 270 miles in 1 hour or 270 mph
That is a simple ratio problem. To travel 103 miles going 75 mph, it would be 103 miles/75 miles/hour, which is 1.37333... * 60 minutes which is 82.4 minutes or 82 minutes and 24 seconds precisely.
15.33333333333333333333mph
The number of miles you would travel in 8 minutes would depend on the speed you are traveling. At 60 miles per hour, you would travel 8 miles in 8 minutes.
Think about it: 80miles/hr and there are 60 minutes in an hour. So if you travel 80 miles in 60 minutes, then in half an hour (30 minutes) you would travel 40 miles. In a quarter of an hour (15 minutes) you would travel 20 miles.
You would travel 33.3 miles every four minutes.
13 minutes 30 seconds.
You would travel 16.35 miles in 9 minutes at 109mph. 109mph/60min in an hour= miles per minute x 9 minutes.
If you are going 60 miles an hour all the way there it would take two hours and 45 minutes.
If you drove 60 miles in 60 minutes, you would be going 60 miles per hour. If you drove 60 miles in 30 minutes, you would be going 120 miles per hour. As travel time decreases, speed increases.
To determine how many minutes it takes to travel 85 miles, you need to know how fast you are going, for example if you were going at 85 mph, you would go 85 miles in one hour, but if you were going at 42.5 mph, it would take you 2 hours to travel the same distance. Please post what speed/rate is being traveled at, and then this problem can be solved.
52 hours 14 minutes
It would take about 4 hours and 40 minutes.