document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=188885>Question 188885</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A postal clerk sold some 13 cent stamps and some 20 cent stamps. Altogether, 60 stamps were sold sold for a total cost of $10.25. How many 13 cent stamps were sold? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #141648 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=141648\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .13x+.20(60-x)=10.25<BR>\n" );
document.write( ".13x+12-.20x=10.25<BR>\n" );
document.write( "-.07x=10.25-12<BR>\n" );
document.write( "-.07x=-1.75<BR>\n" );
document.write( "x=-1.75/.07<BR>\n" );
document.write( "x=25 $.13 stamps were sold.<BR>\n" );
document.write( "60-25=35 $.20 stamps were sold.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( ".13*25+.20*35=10.25<BR>\n" );
document.write( "3.25+7=10.25<BR>\n" );
document.write( "10.25=10.25 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );