Basic maths. Speed = distance/time, there fore 780/12 = 65mph
100 miles / 4 hours = 25 miles per hour.
The average speed is 66.67 miles per hour.
900/2.5 = 360 miles per hour
This is an average speed of 26.3 miles per hour.
212 miles per hour.
At an average rate of 53 miles per hour, you can travel 212 miles in 4 hours. This is calculated by multiplying the speed (53 miles per hour) by the time (4 hours): 53 mph × 4 hours = 212 miles.
150 miles an hour
The train's average speed was 34.5 miles per hour.
Joshua drove a total of 1247 miles over 15 hours (5 days * 3 hours/day). To find the average miles per hour, you can divide the total miles by the total hours: 1247 miles / 15 hours = 83.13 miles per hour on average.
Total = 28 miles in 4 hours, average speed = 7 miles per hour.
180 miles / 5 hours = 36 miles per hour (average)
The average speed would be 280 miles divided by 6 hours, which equals 46.67 miles per hour.
The average speed is 2050/5 = 410 miles per hour.
20 miles per hour.
100 miles / 4 hours = 25 miles per hour.
If you drive at an average rate of 70 miles per hour then 931miles / 70miles / hour = 13.3 hours
average velocity = miles/hours = (100 + 30)/(2 + 1) = 130/3 ≈ 43.33 miles/hour