document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=557159>Question 557159</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A chemist needs to make 30 ounces of a 30% alcohol solution by mixing a 15% alcohol solution with a 40% alcohol solution. How many ounces of the 40% solution does she need </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #362479 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=362479\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A chemist needs to make 30 ounces of a 30% alcohol solution by mixing a 15% alcohol solution with a 40% alcohol solution. How many ounces of the 40% solution does she need<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "alcohol + alcohol = alcohol<BR>\n" );
document.write( "0.15x + 0.40(30-x) = 0.30*30<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "Multiply thru by 100:<BR>\n" );
document.write( "15x + 40*30 - 40x = 30*30<BR>\n" );
document.write( "-25x = -10*30<BR>\n" );
document.write( "x = (2/5)*30<BR>\n" );
document.write( "x = 12 ounces (amt of 15% solution needed)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "30-x = 18 ounces (amt of 40% solution needed)<BR>\n" );
document.write( "====================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "==================== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );