document.write( "Question 1179765: A ceramics workshop makes wreaths, trees, and sleighs for sale at Christmas. A wreath takes 3 hrs to prep, 2 hrs to paint, and 10 hrs to fire. A tree takes 16 hrs to prep 3 hrs to paint, and 4 hrs to fire. A sleigh takes 4 hrs to prep, 14 hrs to paint, and 7 hrs to fire. If the workshop has 117 hrs for prep, 85 hrs for painting, and 118 hrs for firing, how many of each can be made? I can get the 3 equations and draw the matrix but now I am lost! \n" ); document.write( "
Algebra.Com's Answer #809392 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "If you can construct a matrix equation model for this problem, it is great (!).\r
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\n" ); document.write( "\n" ); document.write( "To move forward and solve the system, there are 3 major ways.\r
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\n" ); document.write( "\n" ); document.write( "First way is to do it manually.\r
\n" ); document.write( "\n" ); document.write( "For it, you should know HOW TO do it.\r
\n" ); document.write( "\n" ); document.write( "There are different methods of manual solving: Substitution, Elimination and the Determinant method (same as the Cramer's rule).\r
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\n" ); document.write( "\n" ); document.write( "You may learn about these methods from the lessons\r
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\n" ); document.write( "\n" ); document.write( "    - Solving systems of linear equations in 3 unknowns by the Substitution method,\r
\n" ); document.write( "\n" ); document.write( "    - BRIEFLY on solving systems of linear equations in 3 unknowns by the Substitution method,\r
\n" ); document.write( "\n" ); document.write( "    - Solving systems of linear equations in 3 unknowns by the Elimination method \r
\n" ); document.write( "\n" ); document.write( "    - BRIEFLY on solving systems of linear equations in 3 unknowns by the Elimination method\r
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\n" ); document.write( "\n" ); document.write( "    - Determinant of a 3x3 matrix \r
\n" ); document.write( "\n" ); document.write( "    - Co-factoring the determinant of a 3x3 matrix \r
\n" ); document.write( "\n" ); document.write( "    - HOW TO solve system of linear equations in three unknowns using determinant (Cramer's rule)\r
\n" ); document.write( "\n" ); document.write( "    - Solving systems of linear equations in three unknowns using determinant (Cramer's rule)\r
\n" ); document.write( "\n" ); document.write( "    - Solving word problems by reducing to systems of linear equations in three unknowns\r
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\n" ); document.write( "\n" ); document.write( "Another way is to solve your system using your pocket calculator.\r
\n" ); document.write( "\n" ); document.write( "You may learn on  HOW  TO  do it from the numerous lessons and video presentations in the Internet.\r
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\n" ); document.write( "\n" ); document.write( "            Put these keywords to the  GOOGLE  search engine  \"how to solve matrix equation using calculator\", \r
\n" ); document.write( "\n" ); document.write( "            and it will provide you numerous useful links.\r
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\n" ); document.write( "\n" ); document.write( "The third way is to solve your system using free of charge (!) online solver in the Internet.\r
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\n" ); document.write( "\n" ); document.write( "            For it, put these keywords to the  GOOGLE  search engine  \"how to solve matrix equation using online solver\", \r
\n" ); document.write( "\n" ); document.write( "            and it will provide you several useful links for this technology.\r
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\n" ); document.write( "\n" ); document.write( "So many ways are there around you to improve and develop your skills (!)\r
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\n" ); document.write( "\n" ); document.write( "If you chose some of these ways, you may report me about your progress.\r
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\n" ); document.write( "\n" ); document.write( "It would be interesting to me to learn about your experience and your progress (!)\r
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