Final answer:
The Smith family drove a total of 1,350 miles to Florida by multiplying their average speed of 75 miles per hour by the total driving time of 18 hours.
Step-by-step explanation:
To calculate the total distance the Smith family drove to Florida, we need to use the formula for distance which is the product of average speed and total driving time. The given average speed is 75 miles per hour, and the total driving time is 18 hours.
The formula to calculate distance (D) is:
D = average speed × total driving time
By plugging in the given values:
D = 75 miles/hour × 18 hours = 1350 miles
Therefore, the Smith family drove a total of 1,350 miles.