Question

3. Shantiel left her home at 9:00 a.m. on Tuesday and

traveled 648 miles. When she arrived at her destination
it was 3:00 a.m. the next day. Given that her home and
her destination are in the same time zone, which of the
following is closest to her average speed, in miles per
hour, for this trip?
A. 72
B. 54
C. 36
D. 31
E. 18

Answer 1

Shantiel's trip was 18 hours long, and she traveled 648 miles. The average speed is found by dividing the total distance by the total time, which gives us 36 miles per hour as the answer.

Step-by-step explanation:

To calculate Shantiel's average speed, we first need to determine the total time taken for the trip. She left at 9:00 a.m. and arrived at 3:00 a.m. the following day. The duration of her trip was therefore 18 hours. Next, we use the formula for average speed, which is:

Average Speed = Total Distance / Total Time

Substituting in the given values, we get:

Average Speed = 648 miles / 18 hours = 36 miles per hour

Therefore, option C, 36 miles per hour, is closest to Shantiel's average speed for her trip.