---

Waiting for your answers...

Answer the following work problem. Report your answer to the nearest tenth of a hour.

Tammy can do a certain job in 11 hours. Sue can do the same job in 7 hours. Tammy and Sue work together to complete the same job. However, Tammy starts working 4 hours after Sue starts to work. How many hours will it take for them to complete the job once Sue starts to work? hours