Question 512928
	--------percent	----------------	quantity									
glycerin	50	----------------			60	gallons						
water	0	----------------			x	gallons						
Mixture	10	----------------	60	+	x	gallons						
												
50	*	60	+	0	x	=	10	(	60	+	x	)
3000	+	0	x	=	600	+	10	x				
0	x	+	-10	x	=	600	-	-3000				
-10	x	=	-2400									
/	-10											
x	=	240										
		240	gallons		of	water