document.write( "Question 362619: Ms. Anthony wants to create a special blend using two coffees, one priced ar $8.40 per pound and the other at $7.28 per pound. How many pounds of the $7.28 coffee should she mix with 9 pounds of the $8.40 coffee to sell the mixture for $7.95 per pound? \n" ); document.write( "
Algebra.Com's Answer #258492 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 8.40*9+7.28x=7.95(9+x) \n" ); document.write( "75.6+7.28x=71.55+7.95x \n" ); document.write( "7.28x-7.95x=71.55-75.60 \n" ); document.write( "-.67x=-4.05 \n" ); document.write( "x=-4.05/-.67 \n" ); document.write( "x=6.045 pounds of $7.28 coffee is used. \n" ); document.write( "Proof: \n" ); document.write( "8.40*9+7.28*6.045=7.95(9+6.045) \n" ); document.write( "75.6+44=7.95*15.045 \n" ); document.write( "119.6=119.6 \n" ); document.write( " |