The rate of change is 140 miles / 4 hours or 35 miles / 1 hour or 35 miles per hour..
It can also be expressed as 4 hour / 140 miles or 1 hour / 35 miles or 1/35 hour per mile traveled.
Therefore, If you know either the distance traveled or thye elapsed time, you can figure out the other value.
She drives at 53.25 mph
49 miles
40 miles.
At 60 miles per hour, six hours. At 30 miles per hour, twelve hours.
Convert them all to the same per x hours and then compare them. You can either convert them all to unit rates (x = 1) or some other rate (eg lcm of 16, 50, 15 and 20). I'll use unit rates: 800 miles per 16 hours = 800 ÷ 16 miles per 16 × 16 hours = 50 mph 1500 miles per 50 hours = 1500 ÷ 50 miles per 50 ÷ 50 hours = 30 mph 600 miles per 15 hours = 600 ÷ 15 miles per 15 ÷ 15 hours = 40 mph 900 miles per 20 hours = 900 ÷ 20 miles per 20 ÷ 20 hours = 45 mph 50 mph is the greatest unit rate → 800 miles per 16 hours is the greatest rate. --------------- The rates can be ordered: 50 > 45 > 40 > 30 → 800 miles per 16 hours > 900 miles per 20 hours > 600 miles per 15 hours > 1500 miles per 50 hours.
53
She drives at 53.25 mph
Twenty miles an hour
195 miles
49 miles
3.75
You cannot convert hours into miles because you have no idea how fast they were driving. There could be a huge difference between someone who drives really slow over 200 engine hours and someone who drives really fast over the same 200 hours. It does not take into account the distance travelled, only the hours the engine has been run.
360/4 = 90 miles per hour. So 2 hours x 90 = 180 miles. 360 + 180 = 540 miles.
416
You cannot convert hours into miles because you have no idea how fast they were driving. There could be a huge difference between someone who drives really slow over 200 engine hours and someone who drives really fast over the same 200 hours. It does not take into account the distance traveled, only the hours the engine has been run.
2 hours 34min and 21 sec.
37.5 mph