'd' Miles at 's' Miles per hour (formula)?

I want to know how long it takes to travel 'd' (distance in miles) at 's' (miles per hour). I'm driving myself nuts trying to figure it out.

Ex. 3.8 miles at 20 mph = ?

Robert L2008-10-26T17:35:19Z

Favorite Answer

distance = rate * time

3.8 = 20 t

t = 0.19 hrs or 11.4 minutes
.