Question 503347
---------percent	---------percent	----------------			quantity								
Alcohol I	30	----------------			x	quarts							
Alcohol II	70	----------------	60	-	x	quarts							
Mixture	50.00%	----------------	60										
													
30	x	+	70	(	60	-	x	)	=	50	*	60	
													
30x+4200-70x=3000			
30x-70x	=3000	-4200			
-40	x			=	-1200								
/	-40												
	x			=	30		quarts			30.00%		Alcohol I	
					30		quarts			70.00%		Alcohol II