document.write( "Question 231715: a pharmacist has 20% solution of phenol and a 60% phenol solution. how much of each solution should be mixed together to form 800 milliliters of a 47.5% solution? \n" ); document.write( "
Algebra.Com's Answer #171443 by checkley77(12844)\"\" \"About 
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.60x+.20(800-x)=.475*800
\n" ); document.write( ".60x+160-.20x=380
\n" ); document.write( ".40x=380-160
\n" ); document.write( ".40x=220
\n" ); document.write( "x=220/.40
\n" ); document.write( "x=550 ml. of 60 solution is used.
\n" ); document.write( "800-550=250 ml. of 20% solution is used.
\n" ); document.write( "Proof:
\n" ); document.write( ".60*550+.20*250=380
\n" ); document.write( "330+50=380
\n" ); document.write( "380=380
\n" ); document.write( "
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