4.08 seconds
18000 yards = 10.23 miles a person can comfortably walsk at 3 miles an hour so it would take 3.41 hours to cover 18000 yards.
About 3.4 seconds.
Roughly 3.199 seconds.
To convert 139 yards in 25.75 seconds to miles per hour, first calculate the speed in yards per second. Then convert yards to miles (1 mile = 1760 yards). Finally, convert seconds to hours (1 hour = 3600 seconds). Calculate the speed in miles per hour using the obtained values.
There are 1760 yards in one mile. Therefore, 5 miles per hour is equal to 5 x 1760 = 8800 yards per hour. To travel 400 yards at 5 miles per hour would take 400/8800 x 60 = 2.72 recurring (that is, 2.727272...) minutes or 2 minutes 43.63 recurring (that is, 2 minutes 43.636363...) seconds.
About 2.05 seconds.
3,500 yards is 1.99 miles.
10,000 yards is 5.68 miles.
500 yards is 0.28 miles.
1 hour.
One hour.
At 80 miles per hour, one hour. At sixty miles per hour, 80 minutes.