You can
put this solution on YOUR website!Rate x Time = Distance
Rate with wind = Speed of Plane in calm air + Speed of Wind=
![R[w]=P+W](/cgi-bin/plot-formula.mpl?expression=R%5Bw%5D=P%2BW&x=0003)
Rate against wind = Speed of Plane in calm air - Speed of Wind=
![R[a]=P-W](/cgi-bin/plot-formula.mpl?expression=R%5Ba%5D=P-W&x=0003)
Distance is the same in both cases.
Time with :
![T[w]=4](/cgi-bin/plot-formula.mpl?expression=T%5Bw%5D=4&x=0003)
Time against :
![T[a]=4](/cgi-bin/plot-formula.mpl?expression=T%5Ba%5D=4&x=0003)
Distance with :
![D[w]=2200](/cgi-bin/plot-formula.mpl?expression=D%5Bw%5D=2200&x=0003)
Distance against :
![D[a]=1820](/cgi-bin/plot-formula.mpl?expression=D%5Ba%5D=1820&x=0003)
Generate your two rate equations (
![R[w]T[w]=D[w]](/cgi-bin/plot-formula.mpl?expression=R%5Bw%5DT%5Bw%5D=D%5Bw%5D&x=0003)
and
![R[a]T[a]=D[a]](/cgi-bin/plot-formula.mpl?expression=R%5Ba%5DT%5Ba%5D=D%5Ba%5D&x=0003)
) in terms of P and W and the known quantitites.
Solve for P and W.