Question 434976
	students tickets		x	Numbers					
	non student tickets	------------	y Numbers					
x	+		y	=	311	.............1		
0.5	x	+	1.5	y	=	385.5	.............2		
Eliminate y									
multiply (1)by 	-1.5							
Multiply (2) by	1							
-1.5	x-1.5	y	=	-466.5			
0.5	x1.5	y	=	385.5			
Add the two equations									
-1	x				=	-81			
/	-1								
x=81students tickets			
plug value of 	x	in (1)					
1	x	+	1	y	=	311			
81		+	1	y	=	311			
			1	y	=	311		-81	
			1	y	=	230			
y=230  	=	230.00	non student tickets