Question 418021
percent	----------------quantity oz
8	----------------x
15	----------------100-x
12.20%	----------------100 	

8x+15(100-x)=12.2*100
8x+1500	-15x=1220		
8x-15x=1220-1500		
-7x=-280							
/-7											
x=40	oz 8%						
balance 60 oz 15%