document.write( "Question 299119: A chemist has 6L of 50 % acid solution. how much water to be added to obtain 20% acid solution? \n" ); document.write( "
Algebra.Com's Answer #215034 by checkley77(12844)\"\" \"About 
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.50*6=.20(6+x)
\n" ); document.write( "3=1.2+.2x
\n" ); document.write( ".2x=3-1.2
\n" ); document.write( ".2x=1.8.
\n" ); document.write( "x=1.8/.2
\n" ); document.write( "x=9 Liters of water is needed.
\n" ); document.write( "Proof:
\n" ); document.write( ".50*6=.20(6+9)
\n" ); document.write( "3=.2*15
\n" ); document.write( "3=3
\n" ); document.write( "
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