Question 474949
Distance = same=		3000						
plane speed	=x							
wind speed	=y							
t=d/r								
3000	/	(	x	-	y	)=	10.00	
10	(	x	-	y	)	=	3,000.00	
10	x		-10	y	=	3000	....................1	
3000	/	(	x	+	y	)=	5.00	
5.00	(	x	+	y	)	=	3000	
5.00	x	+	5.00	y	=	3000	...............2	
Multiply (1) by 	1.00							
Multiply (2) by	2.00							
we get								
10	x	+	-10	y	=	3000		
10	x	+	10	y	=	6000		
20	x	=	9000					
/	20							
x 	=	450	mph	plane speed				
								
plug value of x in (1)								
10	x		-10	y	=	3000		
4500			-10	y	=	3000		
-10	y	=	3000	-4500				
-10	y	=	-1500					
	y	=	150	mph	wind speed