To travel 145 miles in 3.5 hours requires an average speed of 145/3.5 mph. The distance traveled at this speed for 5 hours would be approximately 207 miles (5 x 145/3.5 miles).
six hours 870 / 145 = 6
less than two minutes.
6 Hours
Miles are a measurement of distance. Hours are a measurement of time. These two have no connection, unless you are trying to ask how long it would take you to travel 145 miles. In this case, it would depend on your travelling speed.
Distance = Rate * Time or, for our purposes Time = Distance/Rate Time = 870 miles/145 miles per hour = 6 hours --------------
Assuming a constant velocity, lets break it down.145 / 3.5 = 41.428571441.42mph is the average speed for your first 3.5 hours. So....41.42 * 5 = 207.1207.1 miles in 5 hours time.
It will take six hours.
time = distance / speed = 145 miles / 70 miles/hour ~= 2.07 hours ~= 2 hours 4 mins
Speed = Distance/Time 3 hours and 27 minutes = 3.45 hours Speed = 500/3.45 = 144.9275362 miles per hour Which when rounded up is 145 mph.
Just divide the distance by the speed.
145 kilometers is just over 90 miles Therefore 145 miles is greater