<PRE><B>Question 608133</B>
A chemist needs 140 milliliters of a 33% solution but has only 11% AND 395 solutions available. Find how many milliliters of each that should be mixed to get the desired solution.
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I think you mean 39%
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e = amount of 11%
t = amount of 39%
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e + t = 140
11e + 39t = 100*140
etc
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