document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=278427>Question 278427</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A disc jockey must play 16 commercial spots during 1 hour of a radio show.  Each commercial is either 30 seconds or 60 seconds long.  If the total commercial time during 1 hour is 13 min, how many 30-second commercials were played that hour?  How many 60-second commercials? \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #202609 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=202609\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x+y=16<BR>\n" );
document.write( "1/2x+y=13<BR>\n" );
document.write( "1/2x=3<BR>\n" );
document.write( "x=6 30 second spots<BR>\n" );
document.write( "y=10 60 second spots<BR>\n" );
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document.write( "6*.5+10=13<BR>\n" );
document.write( "6+10=16<BR>\n" );
document.write( "ok<BR>\n" );
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