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Mathematics, 11.11.2020 19:00 zoieihazel
A train is traveling from City A to City B, a distance of 320 miles. The graph below shows the number of miles, y , the train travels as a function of the number of hours, x , that have passed on its journey. The train travels at a constant speed for the first four hours of its journey and then slows down to a constant speed of 48 miles per hour for the remainder of its journey.
a. How long will it take the train to reach its destination?
b. If the train had not slowed down after 4 hours, how long would it have taken to reach its destination?
c. Suppose after 4 hours, the train increased its constant speed. How fast would the train have to travel to complete the destination in 1.5 hours?
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A train is traveling from City A to City B, a distance of 320 miles. The graph below shows the numbe...
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