SOLUTION: A chemist needs 130 milliliters of a 31% solution but has only 17% and 43% solutions availble. Find how many millimiters of each that should be mixed to get the desired solution.
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Question 403306: A chemist needs 130 milliliters of a 31% solution but has only 17% and 43% solutions availble. Find how many millimiters 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 130 milliliters of a 31% solution but has only 17% and 43% solutions availble. Find how many millimiters of each that should be mixed to get the desired solution.
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f = amount of 43%
s = amount of 17%
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f + s = 130 (total solution)
0.43f + 0.17s = 130*0.31 (total of what's in the solution)
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43f + 17s = 4030
s = 130 - f
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43f + 17(130-f) = 4030
26f = 1820
f = 70 ml
s = 60 ml
