document.write( "Question 551635: housewife wishes to mix coffee beans worth Php60 and Php85 a kilogram to obtain 50 kilograms of coffee beans worth Php70 a kilogram. How many kilograms of each should she use? \n" ); document.write( "
Algebra.Com's Answer #359810 by nerdybill(7384) You can put this solution on YOUR website! housewife wishes to mix coffee beans worth Php60 and Php85 a kilogram to obtain 50 kilograms of coffee beans worth Php70 a kilogram. How many kilograms of each should she use? \n" ); document.write( "Let x = amount (kilograms) of Php60 coffee beans \n" ); document.write( "then \n" ); document.write( "50-x = amount (kilograms) of Php85 coffee beans \n" ); document.write( ". \n" ); document.write( "60x + 85(50-x) = 70(50) \n" ); document.write( "60x + 4250-85x = 3500 \n" ); document.write( "4250-25x = 3500 \n" ); document.write( "-25x = 3500-4250 \n" ); document.write( "-25x = -750 \n" ); document.write( "x = 30 kilograms of Php60 coffee beans \n" ); document.write( ". \n" ); document.write( "Php85 coffee beans: \n" ); document.write( "50-x = 50-30 = 20 kilograms\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |