90 minutes is one and a half hour. 1.5 times 70 gives you the distance.
50 mph at that rate of travel.
Dividing the speed in miles per hour by the number of minutes in one hour gives 66/60 = 1.1 miles per minute.
6 mph, six miles per hour.
17.72 mph at that rate of travel.
43 minutes.
About 1 hour and 22 minutes.
50 mph at that rate of travel.
70 hours 48 minutes.
To drive 12 miles at a constant speed of 30 miles per hour, it will take about 24 minutes. Because 30 miles per hour is half as fast, it will take twice as long, at a rate of 2 minutes per mile.
Distance = Rate * Time or, for our purposes Rate = Distance/Time Rate = 12 miles/8 minutes = 1.5 miles per minute -----------------------------------to get a real world sense of this 1.5 miles/minute (60 minutes/1 hour) = 90 miles an hour ---------------------------
It would take 11 hours and 53 minutes to drive 713 miles at a rate of 60 miles per hour.
About 5 minutes 21 seconds at that rate of travel.
5 minutes is 5/60 hours = 1/12 hour. distance = rate * time distance = 50 mph * 1/12 hour = 50/12 miles ~=4.17 miles
It will take you 11 minutes because at 60/mph you're driving at the rate of 1 mile per minute. (60 miles in 1 hour = 60 miles in 60 minutes.)
Going at the standard rate of 60 mph, it would take 1 hour and 32 minutes.
4 miles in 18 minutes = 13.33... miles per hour.
If you are going 35 MPH at a constant rate, then one hour. 70 MPH, 30 minutes.