document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=179876>Question 179876</A>: <I><SPAN STYLE=\"word-break: break-all;\"> At work one day, Erica received 28 packages.  Speedy delivery delivered twice as many as Ralph's Express, while Ralphs Express delivered four more than Send Quick Package service. How many packages did each service deliver to Erica.\r<BR>\n" );
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document.write( "Speedy Delivery\r<BR>\n" );
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document.write( "Ralph's Express\r<BR>\n" );
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document.write( "Sendquick </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #134772 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=134772\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> At work one day, Erica received 28 packages. Speedy delivery delivered twice as many as Ralph's Express, while Ralphs Express delivered four more than Send Quick Package service. How many packages did each service deliver to Erica. <BR>\n" );
document.write( "Speedy Delivery <BR>\n" );
document.write( "Ralph's Express <BR>\n" );
document.write( "Sendquick\r<BR>\n" );
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document.write( "let number of packages speedy,ralphs,and sendquik delivered be a,b,and c respectively<BR>\n" );
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document.write( "a=2b.......eq 1<BR>\n" );
document.write( "b=c+4......eq 2<BR>\n" );
document.write( "a+b+c=28....eq 3<BR>\n" );
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document.write( "rewrite eq 2 to c=b-4 and take that value and the value of a in eq 1 and plug them into eq 3<BR>\n" );
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document.write( "(2b)+b+(b-4)=28<BR>\n" );
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document.write( "4b=32<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28b=8%29 ALIGN=MIDDLE  ALT=\"highlight%28b=8%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >packages delivered by ralphs<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28a=2b=2%288%29=16%29 ALIGN=MIDDLE  ALT=\"highlight%28a=2b=2%288%29=16%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >packages delivered by speedy<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28c=b-4=8-4=4%29 ALIGN=MIDDLE  ALT=\"highlight%28c=b-4=8-4=4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >package delivered by sendquick<BR>\n" );
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