SOLUTION: 1. How much of 30% HCL solution and 45% HCL solution should be combined together to obtain 30 liters of 40% HCL solution?

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Question 521562: 1. How much of 30% HCL solution and 45% HCL solution should be combined together to obtain 30 liters of 40% HCL solution?
Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
.3x+.45y=.4*30
x+y=30

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