SOLUTION: 8 gal. of a saline solution was mixed with 2 gal. of pure water to make a 16% saline solution. Find the percent concentration of the first solution.

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Question 1071308: 8 gal. of a saline solution was mixed with
2 gal. of pure water to make a 16% saline
solution. Find the percent concentration
of the first solution.
Found 2 solutions by josgarithmetic, josmiceli:
Answer by josgarithmetic(39617) About Me  (Show Source):
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +x+ = gallons of salt in the saline solution
+x+%2F+%28+8+%2B+2+%29+=+.16+
+x+%2F+10+=+.16+
+x+=+1.6+
-----------------------
+1.6+%2F+8+=+.2+
+.2%2A100+=+20+
the concentration of the 1st solution is 20%