For example: A girl was driving about 66 miles. She startd at 2:48 and she wanted to get to the airport about 4:00 pm. How long will it take her??
If the question is the one I suggested in the comment, you can draw a diagram to solve this problem.
2:48 66miles 4:00
I couldnt draw a better picture since it does not support the drawing tools here. Basically, you draw a line with start and end points, label the time and the distance.
From given information, we have:
- Distance = 66 miles
- Time = 1h12' or 72 minutes
- Speed = distance/time = 66/72 miles/min
However, if we want to get the speed in miles/hour (m/h), we will multiply by 60 (1h = 60') to get 55m/h.
Hope that helps!