How long would it take to drive 159 miles at 60 miles per hour?

It would take: 159/60 = 2.65 hours

Distance divided by speed gives you time, so 159 / 60 = 2.65 hours.

0.65 hours is a bit silly. Better turn it into minutes.

0.65 *60 = 39

So 2 hours, 39 minutes, assuming either a steady 60 MPH all the time, or a 60 MPH average.