SOLUTION: A chemist needs 500 milliliters of a solutions that is 20% boric acid and 80% water. She combines x milliliters of a 10% boric acid and 90% water mix and y milliliters of a 30% bor
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Question 1086355: A chemist needs 500 milliliters of a solutions that is 20% boric acid and 80% water. She combines x milliliters of a 10% boric acid and 90% water mix and y milliliters of a 30% boric acid and 70% water mix.
Find the values of x and y - the milliliters of each bottle she needs to use to obtain her 500 ml of 20% boric acid solution..
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A chemist needs 500 milliliters of a solutions that is 20% boric acid and 80% water. She combines x milliliters of a 10% boric acid and 90% water mix and y milliliters of a 30% boric acid and 70% water mix.
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20% is the average of 10% & 30% --> equal amounts.
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