document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=331142>Question 331142</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a store sells 8 more pencils than pens one day. The cost of the pencil is $0.05 and the cost of the pen is $0.20. If the day's sales of pens and pencils equals $8.90, how many pencils were sold.\r<BR>\n" );
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document.write( "I know there is something with x + x+8, but I can't figure out what to do with the different prices. Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #237375 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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/cgi-bin/show-face.mpl?user=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=237375\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let pens sold be x<BR>\n" );
document.write( "pencils sold will be x+8<BR>\n" );
document.write( "..<BR>\n" );
document.write( "cost of pen = 20 cents<BR>\n" );
document.write( "cost of pencils= 5 cents<BR>\n" );
document.write( "..<BR>\n" );
document.write( "total sales = 890 cents<BR>\n" );
document.write( "..<BR>\n" );
document.write( "20x+5(x+8)=890<BR>\n" );
document.write( "20x+5x+40=890<BR>\n" );
document.write( "25x=890-40<BR>\n" );
document.write( "25x=850<BR>\n" );
document.write( "x=34 pens sold<BR>\n" );
document.write( "pencils sold = x+8 = 34+8=42<BR>\n" );
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document.write( "CHECK<BR>\n" );
document.write( "34*20+42*5=890 </SPAN>\n" );
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