You can put this solution on YOUR website! How much time takes a car to travel 420 meters at 30 miles per hour?
-------------
(430 meters)(0.62 miles/1000 meters) = [430*0.62/1000] = 0.2666 miles
--------------------------
Equation:
time = distance/rate
time = 0.2666/30 = 0.0089 hrs
======================
Cheers,
Stan H.
======================