Question 524205
---------price		----------------			quantity							
French roast	9	----------------			x	pounds						
sumantra	8	------	20	-	x	pounds						
Mixture	8.65%	----------------	20									
												
9	x	+	8	(	20	-	x	)	=	8.65	*	20
												
9x+160-8x=173		
9x-8x=173-160		
x			=	13							
x		=	13pounds	$9.00		French roast
7		pounds			$8.00		sumantra