Question: When you normally drive the freeway between Sacramento and San Francisco at an average speed of 95.0km/hr (59.0mph), the trip takes 1.00hr and 28.0 min. On a Friday afternoon, however, heavy traffic slows you down to an average of 85.0km/hr (52.8 mph) for the same distance.
Part A: How much longer does the trip take on Friday than on the other days?
I need help to determine how much longer does the trip take on Friday than on the other days.