document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=682458>Question 682458</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The radiator in a car is filled with a solution of 75 percent antifreeze and 25 percent water. The manufacturer of the antifreeze suggests that for summer driving, optimal cooling of the engine is obtained with only 50 percent antifreeze. If the capacity of the radiator is 3.3 liters, how much coolant (in liters) must be drained and replaced with pure water to reduce the antifreeze concentration to 50 percent?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #423205 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=423205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The capacity of the radiator is 3.3 liters.<BR>\n" );
document.write( "The radiator is filled with a solution of 75% antifreeze<BR>\n" );
document.write( "which is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.75%2A3.3+=+2.475+ ALIGN=MIDDLE  ALT=\"+.75%2A3.3+=+2.475+\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters of antifreeze<BR>\n" );
document.write( "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;\" > = liters,of coolant to be drained and<BR>\n" );
document.write( "replaced with water<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.75x+ ALIGN=MIDDLE  ALT=\"+.75x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters of coolant is in the liters of the <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+ ALIGN=MIDDLE  ALT=\"+x+\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters drained<BR>\n" );
document.write( "It started with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3.3+ ALIGN=MIDDLE  ALT=\"+3.3+\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters and ended with <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3.3+ ALIGN=MIDDLE  ALT=\"+3.3+\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28+2.475+-+.75x+%29+%2F+3.3+=+.5+ ALIGN=MIDDLE  ALT=\"+%28+2.475+-+.75x+%29+%2F+3.3+=+.5+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.475+-+.75x+=+.5%2A3.3+ ALIGN=MIDDLE  ALT=\"+2.475+-+.75x+=+.5%2A3.3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2.475+-+.75x+=+1.65+ ALIGN=MIDDLE  ALT=\"+2.475+-+.75x+=+1.65+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.75x+=+2.475+-+1.65+ ALIGN=MIDDLE  ALT=\"+.75x+=+2.475+-+1.65+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.75x+=+.825+ ALIGN=MIDDLE  ALT=\"+.75x+=+.825+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+1.1+ ALIGN=MIDDLE  ALT=\"+x+=+1.1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "1.1 liters of the 75% solution must be drained and<BR>\n" );
document.write( "replaced with pure water<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3.3+-+1.1+=+2.2+ ALIGN=MIDDLE  ALT=\"+3.3+-+1.1+=+2.2+\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters left after draining<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+.75%2A2.2+=+1.65+ ALIGN=MIDDLE  ALT=\"+.75%2A2.2+=+1.65+\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters of antifreeze left<BR>\n" );
document.write( "Now add <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.1+ ALIGN=MIDDLE  ALT=\"+1.1+\"   DISABLED_style= \"max-width:90%; height:auto;\" > liters of water<BR>\n" );
document.write( "The concentration is <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.65+%2F+3.3+=+.5+ ALIGN=MIDDLE  ALT=\"+1.65+%2F+3.3+=+.5+\"   DISABLED_style= \"max-width:90%; height:auto;\" > or 50%<BR>\n" );
document.write( "OK  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );