document.write( "Question 768077: At coffee house, man wanted 300ml of coffee. To this coffee he wanted pure cream added until the cream represents 20% of the total volume of the drink( cream and coffee. Not just 20% of the 300ml). How much pure cream should be added? \n" ); document.write( "
Algebra.Com's Answer #468040 by josgarithmetic(39799) ![]() You can put this solution on YOUR website! f is volume of cofFee \n" ); document.write( "r is volume of cReam \n" ); document.write( "total volume of both together = f+r. \n" ); document.write( "want 0.20 cream/(cream&coffee)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now, f=300 ml. and r is unknown. Find r. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |