document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=247998>Question 247998</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have another one I don't understand it says, A disc jockey must play 14 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 11 minutes how many 30 second commercials were played that hour? and how many 60 second commercials were played that hour?\r<BR>\n" );
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document.write( "Can someone please help? thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #180792 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=180792\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> jockey must play 14 commercial spots during 1 hour of a radio show,<BR>\n" );
document.write( " each commercial is either 30 seconds or 60 seconds long,<BR>\n" );
document.write( " if the total commercial time during 1 hour is 11 minutes, how many 30 second commercials were played that hour? <BR>\n" );
document.write( "and how many 60 second commercials were played that hour? <BR>\n" );
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document.write( "Let x = no. of 30 sec spots<BR>\n" );
document.write( "Let y = no. of 60 sec spots<BR>\n" );
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document.write( "Let's do everything in minutes; 60 sec = 1 min; 30 sec = .5 min<BR>\n" );
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document.write( "Write an equation for the number of commercials (14)<BR>\n" );
document.write( "x + y = 14<BR>\n" );
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document.write( "Write an equation for the total time of the commercials (11 min)<BR>\n" );
document.write( ".5x + y = 11<BR>\n" );
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document.write( "Subtract this equation from the 1st equation<BR>\n" );
document.write( "x + y = 14<BR>\n" );
document.write( ".5x + y = 11<BR>\n" );
document.write( "---------------subtraction eliminates y, find x<BR>\n" );
document.write( ".5x + 0 = 3<BR>\n" );
document.write( "x = 2(3)<BR>\n" );
document.write( "x = 6 ea 30 sec commercials<BR>\n" );
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document.write( "Find the no. of 60 sec commercials<BR>\n" );
document.write( "14 - 6 = 8 <BR>\n" );
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document.write( "Check n the total time equation<BR>\n" );
document.write( ".5(6) + 1(8) = <BR>\n" );
document.write( "3 + 8 = 11 minutes\r<BR>\n" );
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