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β 14y agoTo average 8 minutes and 15 seconds per mile, you would need to complete 1.84 miles in 15:10.8 There are 495 seconds in 8:15 (8*60+15)=495 seconds 495 seconds * 1.84 = 910.8 seconds 910.8/60 = 15 minutes with remainder of 10.8 seconds
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β 14y agoYes, you can. If the average speed for the first mile is 30 mph, and the average speed for the second mile is 90 mph, then 30+90=120/2=60. You need to solve the equation for average speed, not time. You can't. 1 mile @ 30mph = 2 minutes 60 mph for 2 miles = 2 mintes thererfore you cannot go fast enough (or you could go infinity mph)
1 mile in 4 minutes = 15 miles per hour
60 miles per hour !
You need to run at an average speed of 15 mph.
Seven minutes is 7/60 hours. If you want to make your speed in miles per hours then divide 7 into 60. 60/7=about 8.57 miles per hour. A fast jogger could do this. I'm a fast walker and can average 4.1 mph.
To run a 13-minute mile you will need to average 4.62 miles per hour for the whole 13 minutes.
6.21 miles per hour.
You will need to travel at an average of 25 miles ÷ 2 hours = 121/2 mph.
It depends on how experienced you are as a runner. Beginner: 3 miles or so (11-12 min/mile) Average runner: about 3.5 miles (10 min/mile) Fast: about 4.5 miles (8 min/mile) Experienced XC runner: about 5 miles (7 min/mile) Elite runner/really awesome XC runner: about 6-7 miles (5-6 min/mile) Anything faster than 5 min/mile for 35 minutes is craziness. If you ran more than 7 miles in 35 minutes...you don't need to be asking whether that's a good number of miles :P
10k per hour = 6.2137119 miles per hour
To calculate the speed of 40 seconds per mile, you would need to divide 60 by 40 to get 1.5 minutes per mile. Converting this to hours would be 1.5 divided by 60, which is 0.025 hours per mile. This means the speed is approximately 25 miles per hour.
To find Julie's average velocity, we first need to determine the total distance she ran. 8 laps around a quarter-mile track is 2 miles (8 laps * 0.25 miles/ lap). Then, we can divide this distance by the total time to get her average velocity, which is 2 miles / 18 minutes = 0.11 miles per minute.