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)\"\" \"About 
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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
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\n" ); document.write( "m.ananth@hotmail.ca
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