Atruck driver starts driving his truck at 2: 00 and drives for 45 minutes at 45 miles per hour. 3. at what time will he have traveled 30 miles? 4. what is his speed in miles per minute?

If you travel at a constant speed, you follow this formula:

where s is the space traveled, v is the speed and t is the time passed. Knowing the speed and the desired space, we can solve the equation for the time:

Plug your values:

And two-thirds of an hour are 40 minutes.

To convert his speed in miles per minutes, you only need to use that one hour is composed of 60 minutes:

miles per minute