document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1017204>Question 1017204</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The cost for three packages of moving boxes is modeled by the system of equations below. Let s represent small boxes, m represent medium boxes, and l represent large boxes. Which ordered pair (s, m, l) represents the costs of the three boxes?\r<BR>\n" );
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document.write( "7s+4m+2l=24<BR>\n" );
document.write( "5s+3m+6l=30<BR>\n" );
document.write( "3s+7m+10l=46 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #633555 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=633555\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7s+4m+2t =24<BR>\n" );
document.write( "5s+3m+6t =30<BR>\n" );
document.write( "3s+7m+10t=46 <BR>\n" );
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document.write( "Subtract 2 times the 3rd row from row 1 to get:<BR>\n" );
document.write( "s - 10m - 18t = -68<BR>\n" );
document.write( "5s+3m+6t =30<BR>\n" );
document.write( "3s+7m+10t=46 <BR>\n" );
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document.write( "Subtract 5 times the 1st row from the 2nd row<BR>\n" );
document.write( "Subtract 3 times the 1st row from the 3rd row<BR>\n" );
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document.write( "s - 10m - 18t = -68<BR>\n" );
document.write( "0s + 53m + 96t = 370 <BR>\n" );
document.write( "0s + 37m + 64t = 250<BR>\n" );
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document.write( "Multiply thru 2nd row by 37<BR>\n" );
document.write( "Multiply thru 3rd row by 53<BR>\n" );
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document.write( " s - 10m - 18t = -68<BR>\n" );
document.write( "0s + 1961m + 3552t = 13690  <BR>\n" );
document.write( "0s + 1961m + 33924m = 13250<BR>\n" );
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document.write( "Subtract 2nd row from 3rd to get::<BR>\n" );
document.write( " s - 10m - 18t = -68<BR>\n" );
document.write( "0s + 1961m + 3552t = 13690  <BR>\n" );
document.write( "0s + 0m    - 160t = -440<BR>\n" );
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document.write( "Solve the 3rd row for \"m\"::<BR>\n" );
document.write( " s - 10m - 16t = -68<BR>\n" );
document.write( "0s + 1961m + 3182t = 13690  <BR>\n" );
document.write( "0s + 0m    +     t = 2.75<BR>\n" );
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document.write( "Substitute for \"t\" in row 2 and solve for \"m\":: m = 2<BR>\n" );
document.write( "Substitute for \"t\" and for \"m\" in row 1 and solve for \"s\":: s = 1.5<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( "  </SPAN>\n" );
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