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
Algebra ->
Coordinate Systems and Linear Equations
-> Lessons
-> 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
Log On
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.
-----------------
20% is the average of 10% & 30% --> equal amounts.
