Final answer:
After purchasing three children's tickets at $25 each, the Jones family has $225 remaining from their $300 cash. Dividing this by the cost of an adult ticket ($45) shows they can buy a maximum of 5 adult tickets.
Step-by-step explanation:
To find out the maximum number of adult tickets the Jones family can purchase with $300 while having three children, first calculate the total cost for the children's tickets:
- Cost of one child ticket = $25
- Total cost for three children = 3 × $25 = $75
Next, subtract the total cost for the children's tickets from the total cash available to find out how much is left for adult tickets:
- Total cash - Total cost for children = $300 - $75 = $225
Now, divide the remaining cash by the cost of one adult ticket to find the maximum number of adult tickets:
- Cost of one adult ticket = $45
- Maximum number of adult tickets = $225 / $45
- Maximum number of adult tickets = 5 tickets
Therefore, the Jones family can purchase a maximum of 5 adult tickets with their remaining cash after buying tickets for the three children.