document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=721931>Question 721931</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist has 40 ounces of a solution of iodine and alcohol that is 15% iodine. How much pure iodine must be added to make a solution that is 20% iodine?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #442557 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=442557\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A chemist has 40 ounces of a solution of iodine and alcohol that is 15% iodine. How much pure iodine must be added to make a solution that is 20% iodine?<BR>\n" );
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document.write( "let x=pure iodine to be added<BR>\n" );
document.write( "15%*40+100%x=20%(40+x)<BR>\n" );
document.write( "6+x=8+.2x<BR>\n" );
document.write( ".8x=2<BR>\n" );
document.write( "x=2.5<BR>\n" );
document.write( "pure iodine to be added=2.5 oz </SPAN>\n" );
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