document.write( "Question 1154855: a grocer buys cashews for $9 per kg and peanuts for $4.50 per kg. She wants to sell nuts individually, and she also makes 12 kg of a peanut-cashew mix which costs him $6 per kg. How many kg of nut does the grocer require to make the mix? \n" ); document.write( "
Algebra.Com's Answer #777359 by mananth(16946)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "a grocer buys cashews for $9 per kg and peanuts for $4.50 per kg. She wants to sell nuts individually, and she also makes 12 kg of a peanut-cashew mix which costs him $6 per kg. How many kg of nut does the grocer require to make the mix? \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "let cashews bought be x kg \n" ); document.write( "and nuts bought be y kg\r \n" ); document.write( "\n" ); document.write( "x+y=12...……………….1 \n" ); document.write( "9x+4.5y = 6(x+y)\r \n" ); document.write( "\n" ); document.write( "9x +4.5y = 6x +6y\r \n" ); document.write( "\n" ); document.write( "3x-1.5y =0 \n" ); document.write( "multiply (1) by 1.5\r \n" ); document.write( "\n" ); document.write( "1.5x+1.5y=18..... (2)\r \n" ); document.write( "\n" ); document.write( "Add (1) & (2) \n" ); document.write( "4.5x =18 \n" ); document.write( "x=4 kg \n" ); document.write( "y= 8 kg\r \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |