Final answer:
The question deals with a budget problem involving Soro's ability to take bus rides within his budget constraints. Alphonso's theoretical situation is used as an example to illustrate changes in budget constraints and opportunity costs when prices of bus tickets change while the price of burgers and the budget remain constant.
Step-by-step explanation:
The subject of this question involves determining the number of bus rides Soro can take given the constraints of the budget and the minimum balance required on the card. Soro started with a $50.00 card and each bus ride costs $2.50. To maintain at least $20.00 on his card by the end of the month, Soro sets up an inequality to calculate the maximum number of rides he can take. This is a practical application of algebra that involves setting up inequalities to manage a budget.
Considering Alphonso's scenario where he has a budget of $10 per week to spend on bus tickets and burgers, if the price of bus tickets doubles from $0.50 to $1.00, while the price of burgers remains at $2, Alphonso's budget constraint changes. The total number of items (bus tickets and burgers) he can afford within the same budget would be less than before. This increase in bus ticket price would therefore increase the opportunity cost of bus tickets because Alphonso would have to give up more burgers to afford the same number of bus rides as before the price increase.