document.write( "Question 114323: A certain brand of razor blades c omes in packages of 6, 12, and 24 blades, costing $2, $3, $4 per packages. a store sold 12 packages containing a total of 162 blades razor blades and took in $35. How many packages of each types of each types were sold? \n" ); document.write( "
Algebra.Com's Answer #83186 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A certain brand of razor blades c omes in packages of 6, 12, and 24 blades, costing $2, $3, $4 per packages. a store sold 12 packages containing a total of 162 blades razor blades and took in $35. How many packages of each types of each types were sold? \n" ); document.write( "----------------- \n" ); document.write( "Let \"x\" be # of 6, \"y\" the # of 12, and \"z\" be # of 24 blade packages. \n" ); document.write( "------------------------------ \n" ); document.write( "x+y+z = 12 packages \n" ); document.write( "6x+12y+24z = 162 blades \n" ); document.write( "2x+3y+4z = 35 \n" ); document.write( "=====================================\r \n" ); document.write( "\n" ); document.write( "Using the TI-83 Matrix function I find: \n" ); document.write( "x = 5 \n" ); document.write( "y = 3 \n" ); document.write( "z = 4 \n" ); document.write( "=========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |