document.write( "Question 615967: We're trying to help our soon with his math homework but we're totally stuck one this problem:\r
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document.write( "A store has a sale on almonds, pecans and pistachios. One lb of almonds, one lb of pecans and one lb of pistachios cost $12. Two lbs of almonds and three lbs of pecans cost $16. Three lbs of pecans and two lbs pistachios cost $24. Find the price of each kind of nut.\r
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document.write( "Thank you in advance for any help. \n" );
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Algebra.Com's Answer #387421 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! x=almond, y=pecan, z=pistachio\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x + y + z = 12 ___ A\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2x + 3y = 16 ___ B\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3y + 2z = 24 ___ C\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "eliminating x ___ 2A - B ___ -y + 2z = 8 ___ D\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "eliminating y ___ 3D + C ___ 8z = 48\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for z, then substitute back to find y and x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |