leilaneedshelp5993 leilaneedshelp5993

07-07-2018
Mathematics

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How much water must be added to 10 gallons of solution that is 20% alcohol to dilute it to a solution that is only 5% alcohol?

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hbanna076 hbanna076

07-07-2018

10 of 20%=2 gallons
if 5% = 2 gallons , then 100% = 100x2/5=40
so 40-10 =30 gallons water is needed

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