document.write( "Question 1025510: A merchant has coffee worth $20 a pound that she wishes to mix with 50 pounds of coffee worth $50 a pound to get a mixture that can be sold for $40 a pound. How many pounds of the $20 coffee should be used? \n" ); document.write( "
Algebra.Com's Answer #640805 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Call the number of pounds of $20 stuff, x. The setup looks like this: \n" ); document.write( "20x + 50(50) = 40(50 + x) \n" ); document.write( "Now solve for x. \n" ); document.write( "20x + 2500 = 2000 + 40x \n" ); document.write( "500 = 20x \n" ); document.write( "x = 25 pounds of $20 coffee \n" ); document.write( " |