document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=515672>Question 515672</A>: <I><SPAN STYLE=\"word-break: break-all;\"> George brought three books for his history, chemistry and mathematics classes.  The Chemistry book cost 5 dollars more than the history book. the mathematics book costs twice as much as the chemistry book. if the total bill for all three books was 145 dollars , what is the price of each one? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #344127 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=344127\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> H = price of history book<BR>\n" );
document.write( "C = price of chemistry book<BR>\n" );
document.write( "M = price of mathematics book<BR>\n" );
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document.write( "C = H+5<BR>\n" );
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document.write( "M = 2*C = 2*(H+5)<BR>\n" );
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document.write( "H + C + M = 145<BR>\n" );
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document.write( "substitute in terms of H<BR>\n" );
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document.write( "H + H+5 + 2(H+5) = 145<BR>\n" );
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document.write( "H + H + 5 + 2H + 10 = 145<BR>\n" );
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document.write( "4H + 15 = 145<BR>\n" );
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document.write( "4H = 130<BR>\n" );
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document.write( "H = 32.50<BR>\n" );
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document.write( "C = H+5 = 37.50<BR>\n" );
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document.write( "M = 2*37.50 = 75.00<BR>\n" );
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document.write( "Done. </SPAN>\n" );
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