Question 436704
w, wind speed
r, plane speed absent any wind

45 minutes is 3/4 hour is 0.75 hour.

{{{system((r-w)*3.75=1500,(r+w)*3=1500)}}}


Find just the symbolized speeds for both directions
{{{system(r-w=400,r+w=500)}}}


{{{highlight(w=50)}}}
{{{highlight(r=450)}}}