<PRE><B>Question 663609</B>
Let	$x be	the price of the mixture								
	Price	----------------	quantity					
Brazilian coffee	20	----------------15	pounds				
Coumbian coffee	16	----------------5	pounds				
Total	x	----------------20	pounds				
										
15*20+5*16=20x
	300	+	80	=	20	x				
	380	=	20	x						
	/	20								
	380	/	20	=	x					
	19	=	x							
the price of the mixture		is	$		19					
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