document.write( "Question 798204: Lee blends coffee for a living. He needs to prepare 140 pounds of blended coffee beans selling for $4.11 per pound. He plans to do this by blending together a high-quality bean costing $5.00 per pound and a cheaper bean at $2.50 per pound. To the nearest pound, how much high-quality coffee bean and how much cheaper coffee bean he should blend? \n" ); document.write( "
Algebra.Com's Answer #482094 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Lee blends coffee for a living. He needs to prepare 140 pounds of blended coffee beans selling for $4.11 per pound. He plans to do this by blending together a high-quality bean costing $5.00 per pound and a cheaper bean at $2.50 per pound. To the nearest pound, how much high-quality coffee bean and how much cheaper coffee bean he should blend? \n" ); document.write( "--------- \n" ); document.write( "Equations: \n" ); document.write( "Quantity Eq.::: lower + higher = 140 lbs \n" ); document.write( "---- \n" ); document.write( "Value Eq:::::: 2.5L +5H = 4.11*140 dollars \n" ); document.write( "---- \n" ); document.write( "Modify: \n" ); document.write( "250L + 250H = 250*140 \n" ); document.write( "250L + 500H = 411*140 \n" ); document.write( "----------------------------- \n" ); document.write( "Solve for H: \n" ); document.write( "250H = 161*140 \n" ); document.write( "H= (14/25)161 \n" ); document.write( "H = 90.16 lbs (amt. of high-quality beans needed) \n" ); document.write( "L = 140-H = 49.84 lbs (amt. of lower-quality beans needed) \n" ); document.write( "================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================== \n" ); document.write( " \n" ); document.write( " |