<PRE><B>Question 842424</B>
r speed in still air without wind
w speed of wind


_____________speed___________time___________distance___uniform Rate Equation
WITH_________r+w_____________5______________800________{{{(r+w)*5=800}}}
AGAINST______r-w_____________8______________800________{{{(r-w)*8=800}}}


Do you understand what to do from here?</PRE>