document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=220741>Question 220741</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I do not know how to write the equation to solve this problem.<BR>\n" );
document.write( "A cough medicine contains 25% alcohol. How much liquid should a pharmacist add to 120 milliliter of the medicine so it contains only 20% alcohol? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #165643 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=165643\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A cough medicine contains 25% alcohol. How much liquid should a pharmacist add to 120 milliliter of the medicine so it contains only 20% alcohol?<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "alcohol + alcohol = alcohol<BR>\n" );
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document.write( "I'm going to assume you are adding liquid that has on alcohol in it.<BR>\n" );
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document.write( "0.25*120 + 0*x = 0.20(x+120)<BR>\n" );
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document.write( "Multiply both sides by 100 to get rid of the decimals:<BR>\n" );
document.write( "25*120 + 0 = 20(x+120)<BR>\n" );
document.write( "25*120 = 20x + 20*120<BR>\n" );
document.write( "20x = 5*120<BR>\n" );
document.write( "x = 5*6<BR>\n" );
document.write( "x = 30 milliliters (amt of liquid that should be added)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );