Final answer:
To find the percentage of cars traveling east, divide the number of cars traveling east by the total number of cars and multiply by 100. In this case, 64 out of 100 cars were traveling east, so the percentage of cars traveling east is 64%.
Step-by-step explanation:
To find the percentage of cars traveling east, we need to divide the number of cars traveling east by the total number of cars and multiply by 100.
Number of cars traveling east = 64
Number of cars traveling west = 36
Total number of cars = 64 + 36 = 100
Percentage of cars traveling east = (64 / 100) * 100 = 64%