SOLUTION: You need 420 mL of a 80% alcohol solution. On hand, you have 55% alcohol mixture. You also have 85% alcohol mixture. How much of each mixture will you need to add to obtain the des

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Question 1059816: You need 420 mL of a 80% alcohol solution. On hand, you have 55% alcohol mixture. You also have 85% alcohol mixture. How much of each mixture will you need to add to obtain the desired solution?
You will need
mL of the 55% solution

mL of the 85% solution
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!

If you understand this other posted response,
Example using ONE variable for a two-part mixture
then you also understand your question here. The problem form is exactly the same and the exact same solution methods will work.