If you drive at a constant speed then the distance you trave

If you drive at a constant speed then the distance you travel d varies directly with the time t. Suppose you use cruise control and drive 180 miles in 3 hours. Write an equation to show the relationship between d and t. What is the constant of variation and what does it represent?

Solution

D=RT OR R=D/T
R=180/3
R=60 MPH. ANS.