4. Two planes left the same air port at the same time. One travel due north, the other traveled due east. After about an hour, the east bound plane traveled 60 more miles
than the north bound plane when the two plane were 400 miles apart. How far did the
east bound plane travel? How far did the north bound plane travel? Round your answers
to the nearest tenth of a mile. Be sure to show all of your work, including the equations
you used.