Atrain travels at a constant speed of 35 minutes how long does it take the train to travel 490 miles

14 minutes

Explanation:
The rule that relates the time, speed and distance is:
speed = distance / time

We are given that:
speed is constant = 35 miles/minute
distance = 490 miles

Substitute with the givens in the above equation to get the time as follows:
speed = distance / time
35 = 490/time
time = 490/35
time = 14 minutes

Hope this helps :)