document.write( "Question 1118467: Find the equilibrium quantity and equilibrium price for the commodity whose supply and demand functions are given.\r
\n" ); document.write( "\n" ); document.write( "​Supply: p=q^+20q
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\n" ); document.write( "​Demand: p=-2q^+10q+11,400\r
\n" ); document.write( "\n" ); document.write( "The equilibrium quantity is q=\r
\n" ); document.write( "\n" ); document.write( "The equilibrium price is q=
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Algebra.Com's Answer #733799 by stanbon(75887)\"\" \"About 
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Find the equilibrium quantity and equilibrium price for the commodity whose supply and demand functions are given.
\n" ); document.write( "​Supply: p=q^+20q
\n" ); document.write( "​Demand: p=-2q^+10q+11,400
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\n" ); document.write( "Solve:: q^2+20q = -2q^2+10q+11400
\n" ); document.write( "3q^2 + 10q - 11400 = 0
\n" ); document.write( "(q-60)(3q+190) = 0
\n" ); document.write( "q = 60
\n" ); document.write( "Supply = q^2+20q = 60^2+20*60 = 4800
\n" ); document.write( "Demand = -2q^2+10q+11,400 = -2*60^2+10*60+11400 = 4800
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\n" ); document.write( "The equilibrium quantity is q=
\n" ); document.write( "The equilibrium price is q=
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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