Final answer:
The individual who paid more than half of the total snack cost would be owed money by the other. The total cost is the sum of the cost of Amir's snacks and Joe's snacks. Each should pay half of this amount.
Step-by-step explanation:
The question pertains to how Amir and Joe can equally share the cost of snacks during a road trip. If Amir's snacks cost 2x dollars and Joe's snacks cost I dollars, we'll need to first determine the total cost which is (2x + I) dollars. To share the cost equally, each should pay half of the total cost, so their share would be (2x + I)/2 dollars. If either Amir or Joe paid more than this amount, he would be the one who is owed money by the other.
For example, if Amir's snacks cost $20 (2 * 10), and Joe's snacks cost $5 (I), the total cost is $25. So, each person should pay $12.50. If Amir initially paid for all the snacks ($25), he paid $12.50 more than his share, so Joe owes Amir $12.50.
Learn more about Equal Cost Sharing