document.write( "Question 466300: Teas costing $7 per pound are to be mixed with teas costing $4 per pound to make a 30-pound mixture. If the mixture is to sell for $6 per pound, how many pounds of each kind of tea should be used? \n" ); document.write( "
Algebra.Com's Answer #319706 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Teas costing $7 per pound are to be mixed with teas costing $4 per pound to make a 30-pound mixture. If the mixture is to sell for $6 per pound, how many pounds of each kind of tea should be used? \n" ); document.write( ". \n" ); document.write( "Let x = amount (lbs) of $7 tea \n" ); document.write( "then \n" ); document.write( "30-x = amount of $4 tea \n" ); document.write( ". \n" ); document.write( "7x + 4(30-x) = 6(30) \n" ); document.write( "7x + 120-4x = 180 \n" ); document.write( "3x + 120 = 180 \n" ); document.write( "3x = 60 \n" ); document.write( "x = 20 lbs (of $7 tea) \n" ); document.write( ". \n" ); document.write( "amount of $4 tea: \n" ); document.write( "30-x = 30-20 = 10 lbs \n" ); document.write( " \n" ); document.write( " |