shanice took a long bike ride today and is now 27.2 miles from home. she rides back home at an average of 9.8 miles per hour. this situation can be modeled with the equation d = 27.2 - 9.8t, where d represents the number of miles she is from home and t represents the number of hours she rides. how many hours will it take shanice to ride home? round your answer to the nearest hundredth.