document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=634431>Question 634431</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a word problem. I need help setting up the equation for problem.<BR>\n" );
document.write( "110 rail cars make up a train. 75 rail cars are loaded with an average of 11.6% protein per car. What percent protein needs to be loaded on the remaining 35 cars to make the whole 110 car train 12% protein?\r<BR>\n" );
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document.write( "Thanks: Jon from Oklahoma </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #399595 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=399595\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have a word problem. I need help setting up the equation for problem.<BR>\n" );
document.write( "110 rail cars make up a train. 75 rail cars are loaded with an average of 11.6% protein per car. What percent protein needs to be loaded on the remaining 35 cars to make the whole 110 car train 12% protein?<BR>\n" );
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document.write( "let x=% protein needs to be loaded on 35 cars<BR>\n" );
document.write( "11.6%*75+x%*35=12%*110<BR>\n" );
document.write( "8.7+35x=13.2<BR>\n" );
document.write( "35x=13.2-8.7=4.5<BR>\n" );
document.write( "x=4.5/35<BR>\n" );
document.write( "x&#8776;.129 or 12.9%<BR>\n" );
document.write( "% protein needs to be loaded on 35 cars=12.9% </SPAN>\n" );
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