document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=180709>Question 180709</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Linear Systems    Problem Solving<BR>\n" );
document.write( "4. To run a 30-s ad during a weekday morning, one radio station charges a fixed cost of $400, plus $150 for each day the ad is run. A second radio station charges a fixed cost of $300, plus $200/day. The costs can be modelled by the following equations, where C is the total cost and n is the number of days for which ad is run.<BR>\n" );
document.write( "Station 1:C=150n+400<BR>\n" );
document.write( "Station 2:C=200n+300<BR>\n" );
document.write( "a) Find the missing element in the ordered pair ( , 700) that satisfies both equations and is in the form (n, C).<BR>\n" );
document.write( "b) Explain what your ordered pair from part a) means for both radio stations.<BR>\n" );
document.write( "c) Which station has the lower cost for running a 30-s ad for 5 weekday mornings? Hint: Find (5, ) for each equation.\r<BR>\n" );
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document.write( "Thankssssssssssssssssssssss alottttttttttttttt pleaseeeeeeeeeeeeeeeeeeeeeeeeeeee </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #135455 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=135455\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a.)1.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C%5B1%5D%28n%29=150n%2B400=700 ALIGN=MIDDLE  ALT=\"C%5B1%5D%28n%29=150n%2B400=700\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150n=300 ALIGN=MIDDLE  ALT=\"150n=300\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=2 ALIGN=MIDDLE  ALT=\"n=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C%5B2%5D%28n%29=200n%2B300=700 ALIGN=MIDDLE  ALT=\"C%5B2%5D%28n%29=200n%2B300=700\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=200n=400 ALIGN=MIDDLE  ALT=\"200n=400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n=2 ALIGN=MIDDLE  ALT=\"n=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "N=2 satisifes both for C(N)=700.<BR>\n" );
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document.write( "b.)It means that if I run an ad on either station for 2 days it'll cost me $700.<BR>\n" );
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document.write( "c.)<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C%5B1%5D%285%29=150%285%29%2B400=750%2B400=1150 ALIGN=MIDDLE  ALT=\"C%5B1%5D%285%29=150%285%29%2B400=750%2B400=1150\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C%5B2%5D%285%29=200%285%29%2B400=1000%2B400=1400 ALIGN=MIDDLE  ALT=\"C%5B2%5D%285%29=200%285%29%2B400=1000%2B400=1400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Station 1's cost for a 5 day ad is $250 less than Station 2.  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );