Question 1029141
-------------- 	percent	----------------	Amount									
Ore I	2	----------------			8	kg						
Ore II	5	----------------			x	kg						
Mixture	4	----------------	8	+	x	kg						
												
2	*	8	+	5	x	=	4	(	8	+	x	)
16	+	5	x	=	32	+	4	x				
5	x		-4	x	=	-16	+	32				
1	x	=	16									
/	1											
x	=	16		kg	Ore II							
												
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