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)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If you can construct a matrix equation model for this problem, it is great (!).\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "To move forward and solve the system, there are 3 major ways.\r \n" ); document.write( " \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You may learn about these methods from the lessons\r \n" ); document.write( " \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 \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \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 \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The third way is to solve your system using free of charge (!) online solver in the Internet.\r \n" ); document.write( " \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 \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So many ways are there around you to improve and develop your skills (!)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If you chose some of these ways, you may report me about your progress.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It would be interesting to me to learn about your experience and your progress (!)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |