Algebra.Com's Answer #791206 by ikleyn(52879)![\"\"](\"/images/stars/stars-13.gif\")  
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document.write( "A chain saw requires 3 hours of assembly and a wood chipper 7 hours. A maximum of 42 hours of assembly time is available.
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document.write( "The profit is $190 on a chain saw and $210 on a chipper.
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document.write( "How many of each should be assembled for maximum​ profit?
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document.write( "Let x be the number of wood chippers.\r\n" );
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document.write( "Then the number of chain saws is  .\r\n" );
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document.write( "The profit function is P =  . (*)\r\n" );
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document.write( "Next, in order for do not spend my time for nothing, I create a Table in Excel with 3 column.\r\n" );
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document.write( "First column is x = 0, 1, 2, 3,4, 5, 6, 7.\r\n" );
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document.write( "Second column is to see when this number is integer.\r\n" );
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document.write( "The third column is the profit by formula (*).\r\n" );
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document.write( " T A B L E\r\n" );
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document.write( " x Profit P = \r\n" );
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document.write( "--------------------------------------------------------------\r\n" );
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document.write( " 0 14 2660\r\n" );
document.write( " 1 11.66666667 2426.666667\r\n" );
document.write( " 2 9.333333333 2193.333333\r\n" );
document.write( " 3 7 1960\r\n" );
document.write( " 4 4.666666667 1726.666667\r\n" );
document.write( " 5 2.333333333 1493.333333\r\n" );
document.write( " 6 0 1260\r\n" );
document.write( " 7 -2.333333333 1026.666667\r\n" );
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document.write( "From the Table, you see the ANSWER : 0 wood chippers and 14 chain saws.\r
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document.write( "Solved.\r
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