document.write( "Question 34337: A mixture of 30 lbs. of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of each kind were used to make the mixture? \n" ); document.write( "
Algebra.Com's Answer #20617 by fanism(39)![]() ![]() ![]() You can put this solution on YOUR website! let x be the chocolates worth $1.50 a pound \n" ); document.write( "and let y be the chocolates worth 90¢ a pound.\r \n" ); document.write( "\n" ); document.write( "1.5x + 0.9y = 30(1.1) -- eq1 \n" ); document.write( "x + y = 30 --> x = 30 - y -- eq2 \n" ); document.write( "sub eq2 into eq1, u get\r \n" ); document.write( "\n" ); document.write( "1.5(30-y) + 0.9y = 33 \n" ); document.write( "12 = 0.6y \n" ); document.write( "y = 20\r \n" ); document.write( "\n" ); document.write( "put back into eq2, \n" ); document.write( "x + 20 = 30 \n" ); document.write( "x = 10 \n" ); document.write( " |