Question 454387
	--------price	----------------quantity							
Brazilian coffee  $ 11----------------	x	kgs						
Venezuelan coffee $14	----------------600-x	kgs						
Mixture	$12.00	----------------	600									
												
11x+14(600-x)=12*600
												
11x+8400-14x=7200		
11x-14x	=7200-8400		
-3x=-1200							
/-3											
x=400	kgs $11.00		
200	kgs	$14.00