this is a precalc practice worksheet

A man ies a small airplane from Fargo to Bismarck, North Dakotaa distance of 180 mi. Because he is flying into a head wind, the trip takes him 2 h. On the way back, the wind is still blowing at the same speed, so the return trip takes only 1 h 12 min. What is his speed in still air, and how fast is the wind blowing? speed in still air mph wind speed mph