document.write( "Question 153130: The Post Office of the Principality of the Urals (POPU) charges 23 cents per ounce plus a flat rate of 6 cents for packages mailed within the country. The privately run Package Express company (PEPU) has a delivery charge of $5.50 per package plus $1.75 for each pound. For what size packages would using PEPU instead of POPU be more economical if only the charges are considered? \n" ); document.write( "
Algebra.Com's Answer #112633 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The Post Office of the Principality of the Urals (POPU) charges 23 cents per ounce plus a flat rate of 6 cents for packages mailed within the country. The privately run Package Express company (PEPU) has a delivery charge of $5.50 per package plus $1.75 for each pound. For what size packages would using PEPU instead of POPU be more economical if only the charges are considered? \n" ); document.write( "---------------------- \n" ); document.write( "POPU charge: O(x) = 6 + 23x \n" ); document.write( "PEPU charge: E(x) = 550 + 1.75(x/16) \n" ); document.write( "------------------------- \n" ); document.write( "Question: \n" ); document.write( "When is E(x) less than O(x)? \n" ); document.write( "550 + 1.75(x/16) < 6 + 23x \n" ); document.write( "544 < 22.890625x \n" ); document.write( "x > 23.765.. ounces \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |