Question 785730
x= 	Number of	adult tickets						
y=	Number of	student tickets						
 								
1.00	x	+	1.00	y	=	130.00	.............1	
Total value								
2.50	x	+	1.50	y	=	280.00	.............2	
Eliminate	y							
multiply (1)by		-1.50						
Multiply (2) by		1.00						
-1.50	x		-1.50	y	=	-195.00		
2.50	x	+	1.50	y	=	280.00		
Add the two equations								
1.00	x				=	85.00		
/	1.00							
x	=	85.00						
plug value of			x	in (1)				
1.00	x	+	1.00	y	=	130.00		
85.00		+		y	=	130.00		
				y	=	130.00		-85.00
				y	=	45.00		
				y	=	45.00		
x=	85.00		Number of	adult tickets				
y=	45.00		Number of	student tickets				
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