Question 100625
6C+6B=30 MULTIPLY THIS EQUATION BY 2
4C+8B=30.6 MULTIPLY THIS EQUATION BY -3 & THEN ADD THEM
12C+12B=60
-12C-24B=-91.8 NOW ADD
--------------------------------
-12B=-31.8
B=31.8/12
B=$2.65 FOR THE BEEF SANDWICH.
6C+6*2.65=30
6C+15.9=30
6C=30-15.9
6C=14.1
C=14.1/6
C=$2.35 FOR THE CHICKEN SANDWICH.
PROOF
4*2.35+8*2.65=30.6
9.4+21.2=30.6
30.6=30.6