. Charlotte buys two biscuits and a carton of milk for $5.00.
Oliver buys three biscuits and a carton of milk for $6.50.
How much more does a carton of milk cost than a single biscuit?
Let’s make a system of equation b = biscuit, c = carton of milk 2b + c = 5.00 3b + c = 6.50 Now use elimination subtract -1b = -1.5 b = $1.50 2(1.50) + c = 5 3 + c = 5, c= $2.00 Solution: $0.50 more