document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=708649>Question 708649</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How many gallons of a 70% antifreeze solution must be mixed with 70 gallons of 25% antifreeze to get a mixture that is 60% antifreeze?\r<BR>\n" );
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document.write( "x= 70% antifreeze<BR>\n" );
document.write( "x+70= 25%antifreeze\r<BR>\n" );
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document.write( "x+.60(x+70)=unknown this is were I am lost<BR>\n" );
document.write( "x+.60x+42<BR>\n" );
document.write( "1.6x+42 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #436196 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39799)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=436196\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Taking the format of quantity*concentration,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%2A70%2B70%2A25 ALIGN=MIDDLE  ALT=\"x%2A70%2B70%2A25\"   DISABLED_style= \"max-width:90%; height:auto;\" > = actual antifreeze substance\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2A70%2B70%2A25%29%2FV=60 ALIGN=MIDDLE  ALT=\"%28x%2A70%2B70%2A25%29%2FV=60\"   DISABLED_style= \"max-width:90%; height:auto;\" >,  the desired concentration is 60%. Volume V is still unknown.\r<BR>\n" );
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document.write( "Known also is that this starts with 70 gallons of one of the antifreeze solutions, so,<BR>\n" );
document.write( "x+70=V, which we might have used already in setting up the \"60%\" equation.\r<BR>\n" );
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document.write( "Let's do that, already:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28x%2A70%2B70%2A25%29%2F%28x%2B70%29=60 ALIGN=MIDDLE  ALT=\"%28x%2A70%2B70%2A25%29%2F%28x%2B70%29=60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "THAT is what we want to solve; solve for x. </SPAN>\n" );
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