Question 539596
Adults	x	numbers	,	Price =		$4.00		
children	y	numbers	,	Price =		$2.50		
				Total		13000		
1    	x	+	1	y	=	155	.............1	
4	x	+	2.5	y	=	492.5	.............2	
Eliminate 	y							
multiply (1)by 		-2.5						
Multiply (2) by		1						
-2.5	x		-2.5	y	=	-387.5		
4	x	+	2.5	y	=	492.5		
Add the two equations								
1.5	x				=	105		
/	1.5							
x	=	70						
plug value of 			x	in (1)				
1    	x	+	1	y	=	155		
70		+	1	y	=	155		
			1	y	=	155		-70
			1	y	=	85		
				y	=	85		
Adults ----70						
children ---	85						
m.ananth@hotmail.ca