document.write( "Question 366975: A store buys granola at $1/lb and dried fruit at $2/lb. and sells them at 25% markup. The store sells 2 special mixtures of granola and dried fruit. One customer buys 6 lbs. of Mixture A and 4 lbs of Mixture B and pays $17. Another custoemr reverses the proportions and pays a dollar more. \r
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document.write( "What is the recipe for Mixture A?
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document.write( "What is the recipe for Mixture B? \n" );
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Algebra.Com's Answer #261604 by amoresroy(361)![]() ![]() You can put this solution on YOUR website! A store buys granola at $1/lb and dried fruit at $2/lb. and sells them at 25% markup. The store sells 2 special mixtures of granola and dried fruit. One customer buys 6 lbs. of Mixture A and 4 lbs of Mixture B and pays $17. Another custoemr reverses the proportions and pays a dollar more. \r \n" ); document.write( "\n" ); document.write( "Given: \n" ); document.write( "Selling Prices \n" ); document.write( "Granola : $1 plus 25% mark-up = $1.25/lb \n" ); document.write( "Dried Fruit : $2 plus 25% mark-up = $2.50/lb\r \n" ); document.write( "\n" ); document.write( "Let A = Selling price of mixture A \n" ); document.write( " B = Selling price of mixture B\r \n" ); document.write( "\n" ); document.write( "Equation 1 \n" ); document.write( "6A + 4B = 17\r \n" ); document.write( "\n" ); document.write( "Equation 2 \n" ); document.write( "4A + 6B = 18 \n" ); document.write( "multiply equation 2 by 1.5 \n" ); document.write( "6A + 9B = 27 \n" ); document.write( "deduct equation 2 by equation 1\r \n" ); document.write( "\n" ); document.write( "(6A-6A)+ (9B-4B) = 27 -17 \n" ); document.write( " 5B = 10 \n" ); document.write( " B = 2\r \n" ); document.write( "\n" ); document.write( "substitute B=2 in equation1 \n" ); document.write( "6A + 4(2) = 17 \n" ); document.write( " 6A = 17-8 \n" ); document.write( " A = 1.5\r \n" ); document.write( "\n" ); document.write( "If mixtures A & B is sold at Granola = $1 plus 25% mark-up = $1.25/lb \n" ); document.write( "& $2.00/lb respectively, we ca now compute the recipe for mixtures A & B\r \n" ); document.write( "\n" ); document.write( "Given \n" ); document.write( "Selling prices \n" ); document.write( "Mixture A = $1.50/lb \n" ); document.write( "Mixture B = $2.00/lb\r \n" ); document.write( "\n" ); document.write( "Let x = % of Granola in mixture A \n" ); document.write( "1.25x + 2.5(1-x) = 1.5 \n" ); document.write( " x = 80% \n" ); document.write( "So recipe for mixture A is 80% Granola & 20% Dried Fruit\r \n" ); document.write( "\n" ); document.write( "Let y = % 0f Granola in mixture B \n" ); document.write( "1.25 y + 2.5(1-y) = 2 \n" ); document.write( " y = 40% \n" ); document.write( "So recipe for mixture B is 40% Granola & 60% Dried Fruit\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |