The car you are in is traveling 39 km/hr. how many miles have you gone in 15 minutes?
(conversion problem)

6.06miles

Explanation:

Given parameters:

Speed of the car = 39km/hr

Time = 15minutes

Unkown:

Distance in miles

Solution:

  Speed is the change in distance with time.

             Speed =

We need to express our parameters in the same workable units. So we should convert the given time to hour.

          60min = 1hr

          15 min = 0.25hr

   Therefore:

           Distance = speed x time = 39km/hr x 0.25hr = 9.75km

Now convert km to miles

                      1.609km = 1mile

                        9.75km =   , 6.06miles

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