document.write( "Question 81699: Business and finance. The demand equation for a certain type of printer is given by D= -200p + 35,000
\n" ); document.write( "The supply equation is predicted to be
\n" ); document.write( "S= -p2 + 400p - 20,000
\n" ); document.write( "Find the equilibrium price.\r
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\n" ); document.write( "\n" ); document.write( "thanks
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Algebra.Com's Answer #58532 by stanbon(75887)\"\" \"About 
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Equilibrium means Demand = Supply:
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\n" ); document.write( "D= -200p + 35,000
\n" ); document.write( "The supply equation is predicted to be
\n" ); document.write( "S= -p2 + 400p - 20,000
\n" ); document.write( "-------------------------\r
\n" ); document.write( "\n" ); document.write( "-200p + 35,000 = -p2 + 400p - 20,000
\n" ); document.write( "p^2-600p+55000=0
\n" ); document.write( "p = [600+-sqrt140000)]/2
\n" ); document.write( "p = [600+-374.17]/2
\n" ); document.write( "p = 487.08 or p=112.915
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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