document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=475177>Question 475177</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A druggist wants to reduce a 20-ounce quantity of a 7% solution of iodine to a 4% solution by adding pure alcohol. How much alcohol must he add to accomplish this? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #325947 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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/cgi-bin/show-face.mpl?user=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=325947\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a ALIGN=MIDDLE  ALT=\"a\"   DISABLED_style= \"max-width:90%; height:auto;\" > = ounces of alcohol to be added<BR>\n" );
document.write( "In words:<BR>\n" );
document.write( "( ounces of iodine in final solution) / ( total ounces of solution) = 4%<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "Ounces of iodine started with = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.07%2A20+=+1.4+ ALIGN=MIDDLE  ALT=\"+.07%2A20+=+1.4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.4+%2F+%2820+%2B+a%29+=+.04+ ALIGN=MIDDLE  ALT=\"+1.4+%2F+%2820+%2B+a%29+=+.04+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.4+=+.04%2A%2820+%2B+a%29+ ALIGN=MIDDLE  ALT=\"+1.4+=+.04%2A%2820+%2B+a%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.4+=+.8+%2B+.04a+ ALIGN=MIDDLE  ALT=\"+1.4+=+.8+%2B+.04a+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.04a+=+.6+ ALIGN=MIDDLE  ALT=\"+.04a+=+.6+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+15+ ALIGN=MIDDLE  ALT=\"+a+=+15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "15 ounces of pure alcohol must be added </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );