document.write( "Question 600835: A pharmacist mixed some 5%-saline solution with some 11%-saline solution to obtain 100 mL of a 9% solution. How much of the 5% solution did the pharmacist use in the mixture?
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Algebra.Com's Answer #379503 by mananth(16946)![]() ![]() You can put this solution on YOUR website! percent ---------------- quantity \n" ); document.write( "Saline solution I 5.00% ---------------- x ml \n" ); document.write( "Saline solution II 11.00% ------ 100 - x ml \n" ); document.write( "Mixture 9.00% ---------------- 100 \n" ); document.write( " 12 \n" ); document.write( "5.00% x + 11.00% ( 100 - x ) = 9.00% * 100 \n" ); document.write( "5 x + 11 ( 100 - x ) = 900 \n" ); document.write( "5 x + 1100 - 11 x = 900 \n" ); document.write( "5 x - 11 x = 900 - -1100 \n" ); document.write( "-6 x = -200 \n" ); document.write( "/ -6 \n" ); document.write( " x = 33.33 ml 5.00% Saline solution I \n" ); document.write( " 66.67 ml 11.00% Saline solution II \n" ); document.write( " \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |