Question 917100
RT=D rate time distance, uniform rates rule for travel


w, speed of the jetstream
r, speed of jet in still air


___________________rate_________time__________distance______Equations
WITH STREAM________r+w___________4____________2250__________{{{(r+w)*4=2250}}}
AGAINST STRM_______r-w___________6____________2000__________{{{(r-w)*6=2000}}}