document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=178470>Question 178470</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A compass and ruller costs for $4.00 together. The compass is .90 more than the ruler. How much does the compass costs?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #133406 by </B><A HREF=/tutors/aboutme.mpl?userid=Mathtut><B>Mathtut(3670)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mathtut><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=133406\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let the compass and the ruler cost be c and r, respectively<BR>\n" );
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document.write( "c+r=4......eq 1<BR>\n" );
document.write( "c=r+.9.....eq 2<BR>\n" );
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document.write( "take c's value of r+.9 from eq 2 and plug it into eq 1<BR>\n" );
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document.write( "r+.9+r=4<BR>\n" );
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document.write( "2r=3.10<BR>\n" );
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document.write( "$<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28r=1.55%29 ALIGN=MIDDLE  ALT=\"highlight%28r=1.55%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >costs of rulers<BR>\n" );
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document.write( "from eq 2:c=r+.9$<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28c=1.55%2B.9=2.45%29 ALIGN=MIDDLE  ALT=\"highlight%28c=1.55%2B.9=2.45%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >cost of compasses<BR>\n" );
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document.write( "1.55+2.45=$4.00<BR>\n" );
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