- On a 130 km trip, a car traveled at an average speed of \( 55 \mathrm{~km} / \mathrm{h} \) and then reduced its speed to \( 40 \mathrm{~km} / \mathrm{h} \) for a remainder of the trip. The trip took 2.5 h . For how long did the car travel \( 40 \mathrm{~km} / \mathrm{h} \) ? Plot the graph for the car's journey.
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The total time for the trip is given as 2.5 hours. Therefore, \[ t_1 + t_2 = 2.5 \] Show more…
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