document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1092257>Question 1092257</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "A solution of 81%<BR>\n" );
document.write( "bleach is to be mixed with a solution of 96% bleach to make 135 L of a 87% solution. How many liters of the 81% solution must be used? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #706856 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=706856\">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;\" > = liters of 81% solution needed<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+ ALIGN=MIDDLE  ALT=\"+b+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = liters of 96% solution needed<BR>\n" );
document.write( "----------------------------------------<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+%2B+b+=+135+ ALIGN=MIDDLE  ALT=\"+a+%2B+b+=+135+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+.81a+%2B+.96b+%29+%2F+135+=+.87+ ALIGN=MIDDLE  ALT=\"+%28+.81a+%2B+.96b+%29+%2F+135+=+.87+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "----------------------------------------<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.81a+%2B+.96b+=+117.45+ ALIGN=MIDDLE  ALT=\"+.81a+%2B+.96b+=+117.45+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+81a+%2B+96b+=+11745+ ALIGN=MIDDLE  ALT=\"+81a+%2B+96b+=+11745+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+27a+%2B+32b+=+3915+ ALIGN=MIDDLE  ALT=\"+27a+%2B+32b+=+3915+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides of (1) by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+27+ ALIGN=MIDDLE  ALT=\"+27+\"   DISABLED_style= \"max-width:90%; height:auto;\" > and<BR>\n" );
document.write( "subtract (1) from (2)<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+27a+%2B+32b+=+3915+ ALIGN=MIDDLE  ALT=\"+27a+%2B+32b+=+3915+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-27a+-+27b+-+-3645+ ALIGN=MIDDLE  ALT=\"+-27a+-+27b+-+-3645+\"   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=+5b+=+270+ ALIGN=MIDDLE  ALT=\"+5b+=+270+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+54+ ALIGN=MIDDLE  ALT=\"+b+=+54+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+%2B+54+=+135+ ALIGN=MIDDLE  ALT=\"+a+%2B+54+=+135+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+81+ ALIGN=MIDDLE  ALT=\"+a+=+81+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "81 liters of 81% solution are needed<BR>\n" );
document.write( "54 liters of 96% solution are needed<BR>\n" );
document.write( "----------------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+.81a+%2B+.96b+%29+%2F+135+=+.87+ ALIGN=MIDDLE  ALT=\"+%28+.81a+%2B+.96b+%29+%2F+135+=+.87+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+.81%2A81+%2B+.96%2A54+%29+%2F+135+=+.87+ ALIGN=MIDDLE  ALT=\"+%28+.81%2A81+%2B+.96%2A54+%29+%2F+135+=+.87+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+65.61+%2B+51.84+%29+%2F+135+=+.87+ ALIGN=MIDDLE  ALT=\"+%28+65.61+%2B+51.84+%29+%2F+135+=+.87+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+117.45+=+.87%2A135+ ALIGN=MIDDLE  ALT=\"+117.45+=+.87%2A135+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+117.45+=+117.45+ ALIGN=MIDDLE  ALT=\"+117.45+=+117.45+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );