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You normally drive on the freeway between San Diego and Los Angeles at an average speed...

You normally drive on the freeway between San Diego and Los Angeles at an average speed of 105 km/h , and the trip takes 2 h and 20 min . On a Friday afternoon, however, heavy traffic slows you down and you drive the same distance at an average speed of only 71.5 km/h. a)How much longer does the trip take? ( in minutes)

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