SOLUTION: How many liters of water must be evaporated from 17 liters of a 17% saline solution to make a 25% saline solution? Compute your answer to an accuracy of at least one decimal plac

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Question 1018650: How many liters of water must be evaporated from 17 liters of a 17%
saline solution to make a 25% saline solution? Compute your answer to
an accuracy of at least one decimal place after the decimal point.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+.17%2A17+=+2.89+ = liters of salt in 17% solution
Let +x+ = liters of water to be evaporated from
17% solution
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Note that liters of salt in solution doesn't change
+2.89+%2F+%28+17+-+x+%29+=+.25+
+2.89+=+.25%2A%28+17+-+x+%29+
+2.89+=+4.25+-+.25x+
+.25x+=+1.36+
+x+=+5.44+
5.44 liters of water needs to be evaporated
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check:
+2.89+%2F+%28+17+-+x+%29+=+.25+
+2.89+%2F+%28+17+-+5.44+%29+=+.25+
+2.89+%2F+11.56+=+.25+
+.25+=+.25+
OK