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Answer: someone
can help me with this one
You need a 55% alcohol solution. On hand, you have a 330 mL of a 80% alcohol mixture. How much pure water will you need to add to obtain the desired solution?
Explanation:
Answer:
(5/2, 7/2)
(-2,4) , (x2 , y2)=(7,3)
=(7-2, 3+4)
2 2
=(5/2, 7/2)