document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1034685>Question 1034685</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The cost of making 10 chairs is $340. The cost of making 22 chairs is $520.\r<BR>\n" );
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document.write( "What is the cost per chair? \r<BR>\n" );
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document.write( "Write a linear equation that tells you the total cost, <BR>\n" );
document.write( "C<BR>\n" );
document.write( "C, of making <BR>\n" );
document.write( "x<BR>\n" );
document.write( "x chairs:\r<BR>\n" );
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document.write( "C<BR>\n" );
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document.write( "C= <BR>\n" );
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document.write( "If your total cost is $730, how many chairs did you make? <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 #649376 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=649376\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The cost of making 10 chairs is $340. The cost of making 22 chairs is $520.<BR>\n" );
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document.write( "It's implied that there are some fixed costs.<BR>\n" );
document.write( "(520 - 340)/(22-10) = 180/12 = $15 per chair<BR>\n" );
document.write( "--> fixed costs of 340 - 10*15 = $190<BR>\n" );
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document.write( "What is the cost per chair? <BR>\n" );
document.write( "$15, as shown above.<BR>\n" );
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document.write( "Write a linear equation that tells you the total cost,<BR>\n" );
document.write( "C, of making x chairs:<BR>\n" );
document.write( "C = $190 + $15x<BR>\n" );
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document.write( "If your total cost is $730, how many chairs did you make?<BR>\n" );
document.write( "$730 - $190 = $540<BR>\n" );
document.write( "$540/$15 = 36 chairs<BR>\n" );
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