document.write( "Question 384570: A store mixes Brazillian coffee worth $10 per kilogram and Venezulen coffee worth $12 per kilogram. The mixture is to sell for $11 per kilogram. Find out how much of each should be used to make a 132-kilogram mixture? \n" ); document.write( "
Algebra.Com's Answer #272225 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A store mixes Brazilian coffee worth $10 per kilogram and Venezulen coffee worth $12 per kilogram. The mixture is to sell for $11 per kilogram. Find out how much of each should be used to make a 132-kilogram mixture? \n" ); document.write( "----------------------------------- \n" ); document.write( "Equations: \n" ); document.write( "Quantity Eq: b + v = 132 kg \n" ); document.write( "Value Eq.:: 10b+12v = 11*132 \n" ); document.write( "------------------------------------ \n" ); document.write( "Multiply thru the 1st Eq by 10 to get: \n" ); document.write( "10b + 10v = 10*132 \n" ); document.write( "----- \n" ); document.write( "Subtract that from the Value Eq and solve for \"v\": \n" ); document.write( "2v = 132 \n" ); document.write( "v = 66 kg (amt. of Venezualen coffee needed for the mixture) \n" ); document.write( "---- \n" ); document.write( "Since b+v = 132, b = 132-66 = 66 kg (amt. of Brazilian coffee in the mix) \n" ); document.write( "================================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |