Final answer:
Carlos can buy a maximum of 50 soft drinks.
Step-by-step explanation:
Carlos has a budget of $100 to spend on soft drinks and bottled water. Each soft drink costs $2. To find the maximum number of soft drinks Carlos can buy, we divide his budget by the cost of each soft drink: $100 / $2 = 50. Therefore, the maximum number of soft drinks Carlos can buy is 50.