document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=159080>Question 159080</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0131467735/algebrahomeworkh>Intermediate Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> The cooling system of a car has a capacity of 15 liters.  If the system currently has a mixture of 40% antifreeze how much of this mixture should be drained and replaced with pure antifreeze so that the system is filled with 50% antifreeze?\r<BR>\n" );
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document.write( "I think that the answer is 1.5 liters.  I just don't know how to get it in an Algebraic expression.  I used the equation 15(.5)=15(.4)+ a<BR>\n" );
document.write( "Let a=the amount of antifreeze to be added.  In case you couldn't tell I am severely confused. \r<BR>\n" );
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document.write( "0\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #117195 by </B><A HREF=/tutors/aboutme.mpl?userid=jojo14344><B>jojo14344(1513)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jojo14344><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=117195\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> *See this one, thank you.<BR>\n" );
document.write( "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;\" >, amount in Liters to be drained<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b ALIGN=MIDDLE  ALT=\"b\"   DISABLED_style= \"max-width:90%; height:auto;\" >, amount of 100% A/F to be added<BR>\n" );
document.write( "Therefore,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%2815%280.40%29-a%280.40%29%2Bb%281.00%29=15%280.50%29%29 ALIGN=MIDDLE  ALT=\"highlight%2815%280.40%29-a%280.40%29%2Bb%281.00%29=15%280.50%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ------> working eqn<BR>\n" );
document.write( "</pre<font size=4><b>The above eqn means the 15L capacity with 40% A/F is drained with <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 amount with the same mixture of %40 A/F of course.Then you're adding 100% A/F in <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 amount that will result to the same capacity of 15L with 50% A/F</pre><BR>\n" );
document.write( "Also, take note:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15L-a%28L%29%2Bb%28L%29=15L ALIGN=MIDDLE  ALT=\"15L-a%28L%29%2Bb%28L%29=15L\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "</pre><font size=4><b>The cooling system 15L has taken out <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%28liters%29 ALIGN=MIDDLE  ALT=\"a%28liters%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > amount plus <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%28liters%29 ALIGN=MIDDLE  ALT=\"b%28liters%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > amount equals the same capacity of 15L<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">.<BR>\n" );
document.write( "Continuing,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%2815L%29-a%28L%29%2Bb%28L%29=cross%2815L%29 ALIGN=MIDDLE  ALT=\"cross%2815L%29-a%28L%29%2Bb%28L%29=cross%2815L%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a%28L%29=b%28L%29 ALIGN=MIDDLE  ALT=\"a%28L%29=b%28L%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> substitute in working eqn:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15%280.40%29-a%280.40%29%2Bhighlight%28a%29%281.00%29=15%280.50%29 ALIGN=MIDDLE  ALT=\"15%280.40%29-a%280.40%29%2Bhighlight%28a%29%281.00%29=15%280.50%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6%2B0.60a=7.5 ALIGN=MIDDLE  ALT=\"6%2B0.60a=7.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.60a=7.5-6=1.5 ALIGN=MIDDLE  ALT=\"0.60a=7.5-6=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=cross%280.60%29a%2Fcross%280.60%29=cross%281.5%292.5%2Fcross%280.60%29 ALIGN=MIDDLE  ALT=\"cross%280.60%29a%2Fcross%280.60%29=cross%281.5%292.5%2Fcross%280.60%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28a=2.5L%29 ALIGN=MIDDLE  ALT=\"highlight%28a=2.5L%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > --------> amount to be drained = amount to be added<BR>\n" );
document.write( "In doubt? go back working eqn:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15%280.40%29-2.5%280.40%29%2B2.5%280.40%29=15%280.50%29 ALIGN=MIDDLE  ALT=\"15%280.40%29-2.5%280.40%29%2B2.5%280.40%29=15%280.50%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=6-1%2B2.5=7.5 ALIGN=MIDDLE  ALT=\"6-1%2B2.5=7.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7.5=7.5 ALIGN=MIDDLE  ALT=\"7.5=7.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "thank you,<BR>\n" );
document.write( "Jojo </SPAN>\n" );
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