document.write( "Question 443119: Everton College Store paid $1666 for 47 calculators. The store paid $10 for each scientific calculator. The others all graphing calculators, cost the store $56 each. How many of each type of calculator was ordered? \n" ); document.write( "
Algebra.Com's Answer #305666 by swincher4391(1107)![]() ![]() You can put this solution on YOUR website! Let x be scientific, y be everything else.\r \n" ); document.write( "\n" ); document.write( "x+y = 47 \n" ); document.write( "10x + 56y = 1666 \n" ); document.write( "-------------------- \n" ); document.write( "10x +10y = 470 \n" ); document.write( "10x +56y = 1666 \n" ); document.write( "---------------- \n" ); document.write( "0x -46y = -1196\r \n" ); document.write( "\n" ); document.write( "y = 26\r \n" ); document.write( "\n" ); document.write( "x + 26 = 47\r \n" ); document.write( "\n" ); document.write( "x = 21 \n" ); document.write( "---------------------- \n" ); document.write( "21 scientific, 26 other\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |