What speed is a car traveling if it goes 240 miles in 4 hours?

D = R/T

That is Distance = Rate/Time

In this instance we want to know what the rate is so we can rearrange the equation to say:

R = D/T

Now we can put in what we know.

R = (240 miles) / (4 hours)

R = 60 miles per hour

240/4 = 60 mph

Because, you divide 240 by 4 = 60 mph.