If dr. suzuki rides his bike to his office, he averages 9 miles per hour. if he drives his car, he averages 36 miles per hour. his time driving 1/3 hour less than his time bicycling. how far is his office?

Here's the equation on how to solve the question above:

Let the time for Dr Suzuki to ride his bike to his office be x
 9x = 36 (x -1/3)
 9x = 36x - 12
 27x = 12
 x = 12/27
 9 * 12/27 = 4 miles

The answer for the question above is 4 miles. I hope this answer helps.