document.write( "Question 817668: [ A chemist mixes a 10% saline solution with a 20% saline solution to make 500 milliliters of a 16% saline solution. How many milliliters of each solution does the chemist mix together? ] \n" ); document.write( "
Algebra.Com's Answer #492133 by TimothyLamb(4379)\"\" \"About 
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10w + 20s = (16)500
\n" ); document.write( "10w + 20s = 8000
\n" ); document.write( "w + s = 500
\n" ); document.write( "s = 500 - w
\n" ); document.write( "---
\n" ); document.write( "10w + 20s = 8000
\n" ); document.write( "10w + 20(500 - w) = 8000
\n" ); document.write( "10w + 10000 - 20w = 8000
\n" ); document.write( "10w = 2000
\n" ); document.write( "---
\n" ); document.write( "w = 200 ml of 10% saline
\n" ); document.write( "s = 300 ml of 20% saline
\n" ); document.write( "---
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