You would have to average 3 miles per hour, but you could do that a lot of ways, such as by walking four miles per hour for two hours and then two miles an hour for two hours.
If Lawrence walked twelve miles in six hours, he was walking two miles per hour. In 30 minutes he would have walked one mile.
At the equator you would have to be travelling at about 2,083 miles per hour.
Given that the average person walks about 3 miles per hour, then it would take them 4 hours to walk 12 miles.
The area would be 9 square miles.
Dividing the distance in miles, 125, by the time in hours, 6.25, gives us 125 / 6.25 = 20 miles per hour.
Twelve divided by two...
175 miles at 65 miles per hour would be 2.69 hours
The average speed would be 56.75 miles per hours.
If you mean that travelling at 26.6 miles per hour, how long you would travel in 4 hours, you would travel 106.4 miles in 4 hours.
10 hours
If you are referring to taking medication every 12 hours, I would think "twice a day" or "bidaily" would be sufficient expressions in a medical setting. Some prescribers prefer to write q12h for "every twelve hours."
At 60 miles per hour it would take about 4 hours.