document.write( "Question 1184191: A carpenter can construct book cases at a cost of P400 each. If
\n" ); document.write( "the carpenter sells the book cases for š‘„ dollars each, it is
\n" ); document.write( "estimated that 300 āˆ’ 2š‘„ book cases will be sold per month.
\n" ); document.write( "Express the number of dollars in the carpenterā€™s monthly
\n" ); document.write( "profit as a function of š‘„. \n" ); document.write( "
Algebra.Com's Answer #814731 by ikleyn(52787)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "A carpenter can construct book cases at a cost of \"cross%28P400%29\" $400 each. If
\n" ); document.write( "the carpenter sells the book cases for x dollars each, it is
\n" ); document.write( "estimated that 300 āˆ’ 2x book cases will be sold per month.
\n" ); document.write( "Express the number of dollars in the carpenterā€™s monthly
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\n" ); document.write( "\n" ); document.write( "            Notice that in your post I replaced  P400  by  $400.\r
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document.write( "The monthly profit is the product of the profit per single book case\r\n" );
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document.write( "multiplied by the number of the sold book cases\r\n" );
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document.write( "    PROFIT = P = (x-400)*(300-2x)  dollars.\r\n" );
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document.write( "You can equivalently present it in the form\r\n" );
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document.write( "    P = 300x - 2x^2 - 120000 + 800x  dollars\r\n" );
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document.write( "or in the form\r\n" );
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document.write( "    P = -2x^2 + 1100x - 120000   dollars.\r\n" );
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