document.write( "Question 885491: James needs to mix a 10% saline solution with a 50% saline solution to create 200 mL of a 18% solution. How many mL of each solution must James use? \n" ); document.write( "
Algebra.Com's Answer #544725 by richwmiller(17219)\"\" \"About 
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a+b=200,
\n" ); document.write( "0.1*a+0.5*b=0.18*200
\n" ); document.write( "a=200-b
\n" ); document.write( "0.1*(200-b)+0.5*b=36
\n" ); document.write( "20-0.1b+0.5*b=36
\n" ); document.write( "0.4*b=16
\n" ); document.write( "b=40
\n" ); document.write( "a=200-b
\n" ); document.write( "a=160 b=40
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