The men's marathon world record was in a time of 2hours, 4minutes, and 55 seconds. The standard distance is 26 miles 385 yard. At this pace, what is his speed in miles per hour?
2 hours, 4 minutes, 55 sec
4 min + 55 sec = 240 s + 55 sec = 295 s
# hr in 295 s is 295s/60*60 = 0.0819
Total time is 2 + 0.0819 = 2.0819 hrs.
385 yards = ? miles
385 yards x (1 mile/1760 yards) = 0.2187 miles
So time is 2.0819 hrs.
distance is 26.2187 miles.
speed in miles/hr = distance in mile/time in hrs = ?