SOLUTION: a chemist needs 90 milliliters of a 26% solution but has only 21% and 30% solutions available. Find how many milliliters of each that should be mixed to get the desired solution
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Question 758822: a chemist needs 90 milliliters of a 26% solution but has only 21% and 30% solutions available. Find how many milliliters of each that should be mixed to get the desired solution Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! a chemist needs 90 milliliters of a 26% solution but has only 21% and 30% solutions available. Find how many milliliters of each that should be mixed to get the desired solution
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s = amount of 21%
t = amount of 30%
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s + t = 90 (total solution)
21s + 30t = 26*90 (total of what's in it)
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