Question

Three burgers and two orders of French fries cost $24. Five burgers and one order of french fries cost $33. What is the cost of one burger? What is the cost of one order of French fries?

Answer 1

Let the cost of burgers be B.
Let the cost of French fries be F.
3B+2F=24
5B+F=33

3B+2F=24
10B+2F=66

7B=42, B=6
so, F=3
The cost of one burger is $6.
The cost of one order of French fries is $3.

Answer 2

the cost of one order of french fries is $3 each