Answer:
We must think that the cars are traveling 630 miles in six hours.
Their combined speeds are x and x+25.
distance = velocity * time
Since, velocity = distance / time
(x + x + 25) = 630 / 6
2x + 25 = 105
2x = 80
So x = 40 mph and the other car's velocity is 65 mph.
Step-by-step explanation: