Question 449088
--------price	----------------quantity							
coffee I 2.75----------------xlb						
coffee II	5----------------100-x	lb						
Total	3.92%	----------------	100				
2.75x+5(100-x)=	3.92*	100
2.75x+500-5x=392		
2.75x-5x=392-500		
-2.25x=-108							
/-2.25											
x=48	lb	$2.75		
52 lb	$5.00