Question 1157319

 Drink A contains 20% real fruit juice.  x  liters

 and Drink B contains 5% real fruit juice.  y liters

y=x+80

20%x +5%y =56.5
20x+5y==5650

-x	+		y	=	80.00		
								
								
20x	+	5	y	=	5650.00	.............2	
Eliminate 	y							
multiply (1)by		-5						
Multiply (2) by		1						
5.00	x		-5.00	y	=	-400.00		
20.00	x		5.00	y	=	5650.00		
Add the two equations								
25.00	x				=	5250.00		
/	25.00							
x	=	210.00						
plug value of			x	in (1)				
-1.00	x	+	1.00	y	=	80.00		
-210.00		+	1.00	y	=	80.00		
			1.00	y	=	290.00		
				y	=	290.00		
Ans	x	=	210 liters Drink A				
	y	=	290 liters	Drink B