document.write( "Question 41607: A nurse preparing a saline solution mixes 150 ml of a 20% solution with x ml of an 80% solution. The concentration of the final solution is given by: C = (4x + 150) / 5(x + 150). Find the concentration after 170 ml of the 80% solution are added.\r
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Algebra.Com's Answer #27704 by Nate(3500)\"\" \"About 
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\"C+=+%284x+%2B+150%29+%2F+%285%28x+%2B+150%29%29\"
\n" ); document.write( "\"C+=+%284%28170%29+%2B+150%29+%2F+%285%28%28170%29+%2B+150%29%29\"
\n" ); document.write( "\"C+=+%28680+%2B+150%29+%2F+%285%2A320%29\"
\n" ); document.write( "\"C+=+%28830%29+%2F+%281600%29\"
\n" ); document.write( "\"C+=+83%2F160+=+0.51875\" 51.875%
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