Final answer:
Ms. Sanchez's average speed was found by dividing the distance of 19 1/2 miles by the time of 2/3 hours, resulting in an average speed of 29.25 mph.
Step-by-step explanation:
The question revolves around calculating Ms. Sanchez's average speed during her trip. The average speed can be found by dividing the total distance traveled by the total amount of time taken. In mathematical terms, speed (s) is calculated using the formula s = d/t, where d is distance and t is time.
Step-by-Step Solution
Ms. Sanchez drove 19 ½ miles in ⅓ hours. To find her speed in miles per hour (mph), we use the formula:
- Distance (d) = 19.5 miles
- Time (t) = 2/3 hours
Now we calculate her speed (s):
s = d/t = 19.5 miles / (2/3 hours) = 19.5 * (3/2) mph = 29.25 mph
So, Ms. Sanchez's average speed was 29.25 mph.