document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=732982>Question 732982</A>: <I><SPAN STYLE=\"word-break: break-all;\"> fred is analyzing the cost of producing two different items at an electronics company. an electrical sensing device uses 5 grams of copper and requires 3 hours to assemble. a smaller sensing device made by the same company uses 4 grams of copper but requires 5 hours to assemble. the first device has a production cost of $27. the second device has a production cost of $32. how much does it cost the company for a gram of this type of copper? what is the hourly labor cost at this company? (assuming that production cost is obtained by adding the copper cost and the labor cost) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #448169 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=448169\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> fred is analyzing the cost of producing two different items at an electronics company. <BR>\n" );
document.write( "An electrical sensing device uses 5 grams of copper and requires 3 hours to assemble. <BR>\n" );
document.write( "A smaller sensing device made by the same company uses 4 grams of copper but requires 5 hours to assemble. <BR>\n" );
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document.write( "The first device has a production cost of $27. <BR>\n" );
document.write( "The second device has a production cost of $32. <BR>\n" );
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document.write( "How much does it cost the company for a gram of this type of copper? <BR>\n" );
document.write( "What is the hourly labor cost at this company? (assuming that production cost is obtained by adding the copper cost and the labor cost)<BR>\n" );
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document.write( "5c + 3a = 27<BR>\n" );
document.write( "4c + 5a = 32<BR>\n" );
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document.write( "Modify:<BR>\n" );
document.write( "25c + 15a = 5*27<BR>\n" );
document.write( "12c + 15a = 3*32<BR>\n" );
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document.write( "Solve for \"c\"<BR>\n" );
document.write( "13c = 39<BR>\n" );
document.write( "c = 3 dollars (cost of one gram of copper)<BR>\n" );
document.write( "=================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=================<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );