25/5 = 5 miles per hour
The average speed is 62.5 miles per hour(mph)
54.55 miles per hour.
You will need to travel at an average of 25 miles ÷ 2 hours = 121/2 mph.
Her average speed is 1.6 miles per hour. Average speed is total distance covered by total time taken to do it. She swims 4 miles upstream, and at 1 mph, it takes 4 hours. She comes back downstream at 4 mph and so she covers the 4 miles in 1 hour. Her total mileage is 8 miles. It takes 4 + 1 hours or 5 hours to cover it. The 8 miles divided by 5 hours is 1 3/5 miles per hour, or 1.6 mph for an average speed.
3.5 hrs + 2 hrs + 10 minutes = 5 hours and 40 minutes = 5 hours and 2/3 hours Average speed = s / t =720 miles / (5 hours + 2/3 hours) =720 miles / (17/3 hours) = 127.06 miles/hours (approximation)
3.5 hours.
470 mph
The average speed for the 3,000 miles is 66.7 miles per hour.
About sixty two miles an hour, average.
It would depend on how fast you're going--if you're going an average of 50 mph, then it would take approximately 26 hours for 1300 miles.
542 miles in 12 hours and 37 minutes equates to an average speed of 42.96 miles per hour.
11 hours, 51 minutes
Going about 55 MPH (average), it is 5 hr 15 minutes.
The average is 200 mi/4.125 hrs or about 48.48 mi/hr
easy.Divide 520 by 8 so...520/8 = 65 miles/hr.
Approximately two hours and nine minutes.
That depends on your average speed. If your average speed is 60mph, then a little over 2 hours. If your average speed is 30mph, then it's going to be a little over 4 hours.