100 sec = 0.02777... hour (rounded)
1 hour = 3,600 seconds
6.389 hours.
2 hours
43200
7 of them.
9000 sec = 2.5 hours.
100 miles / 65 mph = 1.538462 hours = 1 hr 32 min 18.46 sec (nearest 1/100 of a sec)
440
1 hour = 60 x 60 = 3600 sec 5 hours = 5 x 3600 = 18000 sec 30 min = 1800 sec Therefore 5 hours and 30 minutes = 18000 + 1800 = 19800 sec
3,155,760,000 (rounded)
20 min=1,200 sec 6 hours=21,600 sec 6 hours and 20 minutes=22,800
1 hour = 60 x 60 = 3600 sec 48 hours = 48 x 3600 = 172800 sec
100 yards = 300 feet = 300/5280 = .0568 miles 18 sec = 18/60 minute = 18/3600 hours = .005 hours thus answer is .0568 miles/.005 hours = 11.36 mph