document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=818362>Question 818362</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi! <BR>\n" );
document.write( "I am a little lost with the problem \" how many gallons of pure antifreeze must be mixed with 30 gallons of 15% antifreeze to get a mixture that is 40% antifreeze\" \r<BR>\n" );
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document.write( "So far I have multiplied 30 x .15 to get 4.5 gallons of pure antifreeze but am not sure where to go after that. \r<BR>\n" );
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document.write( "Thanks! <BR>\n" );
document.write( "Rachel  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #492479 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=492479\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> how many gallons of pure antifreeze must be mixed with 30 gallons of 15% antifreeze to get a mixture that is 40% antifreeze\" <BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "alch + alch = alch<BR>\n" );
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document.write( "0.15*30 + 1*x = 0.40(30+x)<BR>\n" );
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document.write( "Multiply thru by 100 to get:<BR>\n" );
document.write( "15*30 + 100x = 40*30 + 40x<BR>\n" );
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document.write( "60x = 25*30<BR>\n" );
document.write( "x = 12.5 gallons (amt. of pure solution needed)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============== </SPAN>\n" );
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