Q4 A train leaves Waterloo and travels westbound. Due to track maintenance, it takes the train 2 hours to travel the first 120 km. Once it leaves the construction zone, the train travels at 140 km/h for the rest of the trip. Let s represent the average speed, in km/h, over the entire trip and t represent the time, in hours, spent travelling after leaving the construction zone. If the average speed of the entire trip is 100 km/h, what is the total distance travelled by the train?
Q4 A train leaves Waterloo and travels westbound. Due to track maintenance, it takes the train 2 hours to travel the first 120 km. Once it leaves the construction zone, the train travels at 140 km/h for the rest of the trip. Let s represent the average speed, in km/h, over the entire trip and t represent the time, in hours, spent travelling after leaving the construction zone. If the average speed of the entire trip is 100 km/h, what is the total distance travelled by the train?
Chapter1: Equations, Inequalities, And Mathematical Modeling
Section: Chapter Questions
Problem 22T: On the first part of a 350-kilometer trip, a salesperson travels 2 hours and 15 minutes at an...
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Transcribed Image Text:Q4 A train leaves Waterloo and travels westbound. Due to track maintenance, it
takes the train 2 hours to travel the first 120 km. Once it leaves the construction
zone, the train travels at 140 km/h for the rest of the trip. Let s represent the
average speed, in km/h, over the entire trip and t represent the time, in hours, spent
travelling after leaving the construction zone.
If the average speed of the entire trip is 100 km/h, what is the total distance
travelled by the train?
O O O O
Option 1 450km
Option 2 350km
O Option 3
Option 3
500km
O Option 4 400km
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