im lost , can you help

Algebra
Tutor: None Selected Time limit: 1 Day

prepare 1 l of a 80% alcohol from a 70% solution and a 100% solution. how much of each do you need to measure out?

Jan 31st, 2015

70% alcohol         100% alcohol

               80% alcohol

20%                            10%

ratio= 2: 1

therefore to make 1000ml or 1 litre you would require

2/3*1000=666.67 mls

1/3*1000=333.3mls

please best my answer. thank you

Jan 31st, 2015

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