Question 589168
-------------- 	percent	----------------	Amount									
Chemical I	50	----------------			15	liters						
Chemical II	20	----------------			x	liters						
Total	30	----------------	15	+	x	liters						
												
50*15+20x=30(15	+x)
750+20x	=450+30	x				
20x-30	x=-750+	450				
-10x=-300									
/	-10											
x	=	30		liters	Chemical II							
		30		liters	Chemical I							
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