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March 27, 2017

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180 ml of a mixture of water and alcohol with 90% alcohol concentration is mixed with 70 ml of pure water. what is the alcohol concentration of the new mixture?

Do the following:

1) Find out how many ml of alcohol was in the first mixture. (What is 90% of 180?)

2) Take that amount and divide it by 250 ml (180ml + 70ml)

Matt

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