document.write( "Question 937966: You have to solutions. A 5% saline solution and a 20% saline solution. You have to mix them together to make 90 mL of 10% saline solution. How much of each solution do you need \n" ); document.write( "
Algebra.Com's Answer #571339 by mananth(16946)![]() ![]() You can put this solution on YOUR website! percent ---------------- quantity \n" ); document.write( "Saline solution type I 20.00% ---------------- x ml \n" ); document.write( "Saline solution type II 5.00% ------ 90 - x ml \n" ); document.write( "Mixture 10.00% ---------------- 90 \n" ); document.write( "Total 90 ml \n" ); document.write( "20.00% x + 5.00% ( 90 - x ) = 10.00% * 90 \n" ); document.write( "20 x + 5 ( 90 - x ) = 900 \n" ); document.write( "20 x + 450 - 5 x = 900 \n" ); document.write( "20 x - 5 x = 900 - -450 \n" ); document.write( "15 x = 450 \n" ); document.write( "/ 15 \n" ); document.write( " x = 30 ml 20.00% Saline solution type I \n" ); document.write( " 60 ml 5.00% Saline solution type II \n" ); document.write( " \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |