Final answer:
The equation to determine the distance in miles between the airport and Aunt's home is d * $2.10 = $44.10. By dividing both sides of the equation by $2.10, the distance is found to be 21 miles.
Step-by-step explanation:
To determine the distance in miles between the airport and Aunt's home, we can set up an equation using the given information.
Let's assume the distance in miles between the airport and Aunt's home is represented by d.
The total cost of the taxi fare and tip is $49.10, which includes the tip of $5. So, the cost of the taxi fare is $49.10 - $5 = $44.10.
Since the taxi fare is $2.10 per mile, the equation to determine the distance in miles is:
d * $2.10 = $44.10
Dividing both sides of the equation by $2.10, we get:
d = $44.10 / $2.10
d = 21 miles