Question 99363
If the wind speed is 50 mph, it means the wind must have carried the plane back 300 miles while in the trip to New York (6 hours), and 250 miles forward in the trip back.


x = speed of the plane, in mph
{{{6x - 300 = 5x + 250}}}
{{{x = 550}}}


The plane was at a speed of 550 mph.