document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=568850>Question 568850</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many ounces of a solution that is 90% alcohol need to be mixed with 5 ounces of a solution that is 50% alcohol in order to obtain a solution that is 80% alcohol?\r<BR>\n" );
document.write( "\n" );
document.write( "I have tried a formula: 5(.50) + x(.90) = .80, but the answer yields a negative amount of ounces which is not possible. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #367150 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=367150\">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=+x+ ALIGN=MIDDLE  ALT=\"+x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = ounces of 90% solution needed<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.9x+ ALIGN=MIDDLE  ALT=\"+.9x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = ounces of alcohol in 90% solution<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.5%2A5+=+2.5+ ALIGN=MIDDLE  ALT=\"+.5%2A5+=+2.5+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ounces of alcohol in 50% solution<BR>\n" );
document.write( "given:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+.9x+%2B+2.5+%29+%2F+%28+x+%2B+5+%29+=+.8+ ALIGN=MIDDLE  ALT=\"+%28+.9x+%2B+2.5+%29+%2F+%28+x+%2B+5+%29+=+.8+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.9x+%2B+2.5+=+.8%2A%28+x+%2B+5+%29+ ALIGN=MIDDLE  ALT=\"+.9x+%2B+2.5+=+.8%2A%28+x+%2B+5+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.9x+%2B+2.5+=+.8x+%2B+4+ ALIGN=MIDDLE  ALT=\"+.9x+%2B+2.5+=+.8x+%2B+4+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.1x+=+1.5+ ALIGN=MIDDLE  ALT=\"+.1x+=+1.5+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+15+ ALIGN=MIDDLE  ALT=\"+x+=+15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "15 ounces of 90% solution are needed<BR>\n" );
document.write( "check answer:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+.9%2A15+%2B+2.5+%29+%2F+%28+15+%2B+5+%29+=+.8+ ALIGN=MIDDLE  ALT=\"+%28+.9%2A15+%2B+2.5+%29+%2F+%28+15+%2B+5+%29+=+.8+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+13.5+%2B+2.5+%29+%2F+20+=+.8+ ALIGN=MIDDLE  ALT=\"+%28+13.5+%2B+2.5+%29+%2F+20+=+.8+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+16+=+.8%2A20+ ALIGN=MIDDLE  ALT=\"+16+=+.8%2A20+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+16+=+16+ ALIGN=MIDDLE  ALT=\"+16+=+16+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );