25
Four hours.
Four hours.
At 60 miles per hour, six hours. At 30 miles per hour, twelve hours.
1 hour at 14 miles per hour. 2 hours at 7 miles per hour.
18 hours
Distance = rate * time. (55 miles/hour) * (4 hours) = 220 miles
At 1 mile per hour it is 55 hours, at 2 miles an hour it is 27.5 hours at 5 miles an hour it is 11 hours at 55 miles an hour it is 1 hour at 60 miles an hour it is 55/60 hour or 55 minutes at 120 miles an hour it is 27.5 minutes at 550 miles an hour it is 6 minutes etc
70 miles/hour * 7 hours = 490 miles
6.25 hours at 65 miles per hour = 406.25 miles
1 (hour) 1 (hour) 1 (hour) 1 (hour) +__________ = 4 (hours)
3.75 miles an hour.
Four quarter hours.