Distance= Rate times time

Question

A race- car driver is driving at a rate of √10,800 miles per hour. How long does it take the driver to go 85 miles? Give the answer as a rational expression in simplest form. (Hint: distance= rate times time)

     a. Write the equation to find the driver's travel time using the given values.

     b. Find the solution 

Answer 1

Distance= Rate times time and so time=Distance/Rate

time=85/√10,800 if you like rational denominators

time=85√10,800 /10,800