Final answer:
To calculate Maria's average speed, we use the formula speed equals distance divided by time (s = d/t). Maria traveled a distance of 9 miles in 2 hours, giving her an average speed of 4.5 miles per hour.
Step-by-step explanation:
The subject matter of this question is a simple math problem dealing with speed, distance, and time. The formula necessary to answer this question is speed equals distance divided by time (s = d/t). Maria's total distance of travel is 9 miles and the total time she took to reach the market is 2 hours.
To calculate Maria's average speed, we divide the total distance by the total time. Therefore, her average speed is 9 miles divided by 2 hours, which comes out to 4.5 miles per hour.
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