If you ran 20 minutes at 5.0 mph how far did you go?

Answer 1

Look at the units! Minutes and miles per hour. Hours and minutes are both time but they are not the same.
1hour = 60minutes. We have 20 minutes.
20/60 = 1/3


So we ran for 1/3 of an hour at 5mph.


If we ran 2hours at 5 miles per hour (MPH), it's probably more obvious you ran for 10miles. That's 2 x 5. Which is Hours x MPH.


So what about our calculation? Hours x MPH = 1/3 x 5 = 1.6667 miles.