Final answer:
The car's average speed on a trip from El Paso, TX, to Dallas, TX, which was 1425 km in 12.5 hours, was calculated to be approximately 114 km/h.
Step-by-step explanation:
To calculate the car's average speed, you divide the total distance traveled by the total time taken. Using the information provided, the car traveled 1425 km in 12.5 hours. Applying the formula for average speed:
Vavg = distance / time
The calculation would look like this:
Vavg = 1425 km / 12.5 h = 114 km/h (rounded to the nearest whole number)
So, the car's average speed was approximately 114 km/h.