document.write( "Question 100625: You and several of your friends are helping your aunt move. At lunch you volunteer to go out and buy sandwiches. You get 6 chicken sandwiches and 6 beef sandwiches for $30. Later in the afternoon, everyone is hungry again. You go to the same store and buy 4 chicken sandwiches and 8 beef sandwiches for $30.60. What was the price of the chicken sandwich? \n" ); document.write( "
Algebra.Com's Answer #73293 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! 6C+6B=30 MULTIPLY THIS EQUATION BY 2 \n" ); document.write( "4C+8B=30.6 MULTIPLY THIS EQUATION BY -3 & THEN ADD THEM \n" ); document.write( "12C+12B=60 \n" ); document.write( "-12C-24B=-91.8 NOW ADD \n" ); document.write( "-------------------------------- \n" ); document.write( "-12B=-31.8 \n" ); document.write( "B=31.8/12 \n" ); document.write( "B=$2.65 FOR THE BEEF SANDWICH. \n" ); document.write( "6C+6*2.65=30 \n" ); document.write( "6C+15.9=30 \n" ); document.write( "6C=30-15.9 \n" ); document.write( "6C=14.1 \n" ); document.write( "C=14.1/6 \n" ); document.write( "C=$2.35 FOR THE CHICKEN SANDWICH. \n" ); document.write( "PROOF \n" ); document.write( "4*2.35+8*2.65=30.6 \n" ); document.write( "9.4+21.2=30.6 \n" ); document.write( "30.6=30.6 \n" ); document.write( " \n" ); document.write( " |