document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=949879>Question 949879</A>: <I><SPAN STYLE=\"word-break: break-all;\"> hi, i am stuck on this word problem it has taken me all night, if you wouldn't mind helping me, for i can get an idea on what it is. thank you so so much here is the problem. this is systems using substitution.\r<BR>\n" );
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document.write( "your family is trying to decide between two cable companies. satellite systems charges $49 to set the service and $29 per month for basic cable. the other company, communications cable, charges $25 to set up the service and $37 per month for basic table.<BR>\n" );
document.write( "a. in how many months will both services cost the same?<BR>\n" );
document.write( "b.what will that cost be?<BR>\n" );
document.write( "c. which systems should you choose if your family will only need the service for 6 months?\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #579938 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=579938\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let m be the # of months, C_s be the cost of satellite, and C_c be the cost of communications.\r<BR>\n" );
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document.write( "a) <BR>\n" );
document.write( "C_s = 49 + 29m<BR>\n" );
document.write( "C_c = 25 + 37m\r<BR>\n" );
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document.write( "C_s = C_c when 49 + 29m = 25 + 37m, or 24 = 8m --> m = 3.\r<BR>\n" );
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document.write( "b) That cost is 49 + 29*3 = $136 (alternatively 25 + 37*3 = $136).\r<BR>\n" );
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document.write( "c) You will save money with the satellite systems if you use it for 6 months (plug in m = 6). </SPAN>\n" );
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