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anonymous
 4 years ago
How much water must be added to 12 L of a 40% solution of alcohol to obtain a 30% solution?
anonymous
 4 years ago
How much water must be added to 12 L of a 40% solution of alcohol to obtain a 30% solution?

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.00.4(12)=4.8L of alcohol now This means 7.2 L of water. (7.2+x)=0.7(12+x) 7.2+x=8.4+0.7x 0.3x=1.2 x=4 x is the amount of water added.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Fool can i get your help

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Sure tinkerbell, how can I help you?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0im trying to check 20 math questions and see if i have the right answers

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.020 is a big number :(

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i know but it will go quick i promise

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i have it done im just checking to see if i have them right

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0lol, lala and diya would certainly help you :P

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0okay sure tinker post them.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0post them here or do a new post

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0here is the link: http://openstudy.com/study?F434372624309TS5ABH=_#/updates/4f20243ce4b076dbc348902a
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