Final answer:
Train B will travel a total distance of 350 miles. This is calculated by dividing the given partial distance (140 miles) by the percentage of the total distance that it represents (40%), which must be expressed in decimal form (0.40).
Step-by-step explanation:
If Train B travels 140 miles and that distance is 40% of its total journey, we can find out the total distance it will travel using the following equation:
Total Distance = Part Distance / Percentage (in decimal form)
Therefore, the complete equation to solve our question would be:
Total Distance = 140 miles / 0.40
When you divide 140 miles by 0.40, you get:
Total Distance = 350 miles
So, Train B will travel a total distance of 350 miles.