Question

Using the formula D= r•t where D equals distance traveled, r equals the average rate of speed and t equals the time traveled, choose the expression or equation that correctly represents this information. Sam drove 200 at an average rate of speed of 50 miles per hour. How long did he travel?

Answer 1

D = r• t
reverses the equation so that D and r are on the same side
d/r = t

`200 / 50 = 4`
Sam travels 4 hours at a rate of 50 mph