document.write( "Question 691177: A manufacturer has found that the daily demand for a certain item is D(p)=400/p, where p is the price of the item in dollars. The daily supply is S(p)=4p-1. At what price does the supply equal demand? \n" ); document.write( "
Algebra.Com's Answer #426534 by pmatei(79)\"\" \"About 
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\"400%2Fp=4p-1\"\r
\n" ); document.write( "\n" ); document.write( "\"400=4p%5E2-p\"\r
\n" ); document.write( "\n" ); document.write( "\"4p%5E2-p-400=0\"\r
\n" ); document.write( "\n" ); document.write( "\"p+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"\r
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\n" ); document.write( "\n" ); document.write( "The minus solution gives a negative price, thus we do not consider it.\r
\n" ); document.write( "\n" ); document.write( "\"p+=+81.006%2F8+=+10.1257\"
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