90 minutes is one and a half hour. 1.5 times 70 gives you the distance.
50 mph at that rate of travel.
6 mph, six miles per hour.
17.72 mph at that rate of travel.
43 minutes.
Dividing the speed in miles per hour by the number of minutes in one hour gives 66/60 = 1.1 miles per minute.
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.)
4 miles in 18 minutes = 13.33... miles per hour.
Going at the standard rate of 60 mph, it would take 1 hour and 32 minutes.
If you are going 35 MPH at a constant rate, then one hour. 70 MPH, 30 minutes.