document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=185849>Question 185849</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A total of twelve thousand passengers normally ride the green line of the MBTA during te morning rush hour.  The token prices for a ride are .25 for childern under 12, $1 for adults and .50 for senior citizens.  The revenue from these riders is $10,700. If he token prices were raised to .35 for childern under 12 and $1.50 for adults, and the senior ctizens price was unchanged, the expected revenue from these riders would be $15,820.  How many riders in each category normally ride the green line during the morning rush hour?\r<BR>\n" );
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document.write( "I know how to do matrices, however, I can not figure out how to set this one up and could use some help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #139368 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=139368\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A total of twelve thousand passengers normally ride the green line of the MBTA during te morning rush hour. <BR>\n" );
document.write( "a + s + c = 12000<BR>\n" );
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document.write( "The token prices for a ride are .25 for childern under 12, $1 for adults and .50 for senior citizens. The revenue from these riders is $10,700. <BR>\n" );
document.write( "100a + 50s + 35c = 1070000 cents<BR>\n" );
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document.write( "If the token prices were raised to .35 for childern under 12 and $1.50 for adults, and the senior ctizens price was unchanged, the expected revenue from these riders would be $15,820. <BR>\n" );
document.write( "150a + 50s + 35c = 1582000 cents<BR>\n" );
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document.write( "System to solve:<BR>\n" );
document.write( "   a +   s +   c = 12000<BR>\n" );
document.write( "100a + 50s + 35c = 1070000 <BR>\n" );
document.write( "150a + 50s + 35c = 1582000 <BR>\n" );
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document.write( "Use what you know about matrices to solve for a,s, and c.<BR>\n" );
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document.write( "How many riders in each category normally ride the green line during the morning rush hour? <BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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