document.write( "Question 956211: A chemist has two solutions. One is 40% alcohol, and the other is pure alcohol. How much of each solution should be mixed together to make 1.6 liters of a solution that is 52% alcohol?\r
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\n" ); document.write( "\n" ); document.write( "I have tried x + y= 1.6 x=1.6-y \r
\n" ); document.write( "\n" ); document.write( "Also using grids. \r
\n" ); document.write( "\n" ); document.write( "Came up with
\n" ); document.write( "0.40(1.6-y) + 1.00y= .832
\n" ); document.write( "0.64-0.40y + 1.00y =.832
\n" ); document.write( "0.64 +0.6y= .832
\n" ); document.write( "0.6y= 1.3
\n" ); document.write( "y=2.16\r
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\n" ); document.write( "\n" ); document.write( "I feel I am doing something very wrong. Help is greatly appreciated.
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Algebra.Com's Answer #584189 by lwsshak3(11628)\"\" \"About 
You can put this solution on YOUR website!
A chemist has two solutions. One is 40% alcohol, and the other is pure alcohol. How much of each solution should be mixed together to make 1.6 liters of a solution that is 52% alcohol?
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\n" ); document.write( "let x=amt of 40% alcohol to mix
\n" ); document.write( "1.6-x=amt of pure(100%) alcohol to mix
\n" ); document.write( "..
\n" ); document.write( "40%x+100%(1.6-x)=52%*1.6
\n" ); document.write( ".40x+1.6-x=0.832
\n" ); document.write( ".60x=0.768
\n" ); document.write( "x=1.28
\n" ); document.write( "1.6-x=0.32
\n" ); document.write( "amt of 40% alcohol to mix=1.28 liters
\n" ); document.write( "amt of pure(100%) alcohol to mix=0.32 liters
\n" ); document.write( "note: your setup is ok, you just added instead of subtracting in the 4th step.
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