document.write( "Question 123335: Sharon's revenue R(in dollars) on the sales of x fruitcakes is determined by the fomula R=50x-x^2. Her cost C(in dollars) for producing x fruitcakes is given by the fomula C=2x+40.What value of x is Sharon's profit positive? \n" ); document.write( "
Algebra.Com's Answer #90513 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Sharon's revenue R(in dollars) on the sales of x fruitcakes is determined by the fomula R=50x-x^2. Her cost C(in dollars) for producing x fruitcakes is given by the fomula C=2x+40.What value of x is Sharon's profit positive? \n" ); document.write( "------------- \n" ); document.write( "Profit is positive when Revenue > Cost \n" ); document.write( "INEQUALITY: \n" ); document.write( "50x-x^2 > 2x+40 \n" ); document.write( "48x-x^2 > 40 \n" ); document.write( "x^2-48x+40 < 0 \n" ); document.write( "0.84< x < 47.15 \n" ); document.write( "================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |