...does this function have a maximum or minimum? 8.
A Jet travels 3950 miles from Chicago, Illinois to London, England
and 3950 miles on the return trip from London to Chicago. The total
flying time (round trip - both directions) is 16.5 hrs. The return trip
takes longer due to winds that generally blow from west to east. If
the jet's average speed with no wind is 485 mi/hr, what is the average
speed of the wind during this round trip flight? Round to the nearest
mile per hour.