Waiting for your answers... Answer the following work problem. Report your answer to the nearest tenth of a week. Alice can do a certain job in 11 weeks. Shawna can do the same job in 9 weeks.If Alice and Shawna work together to complete the same job, how many weeks will it take for them to complete it? weeks

Alice can do a certain job in 11 weeks. Shawna can do the same job in 9 weeks.If Alice and Shawna work together to complete the same job, how many weeks will it take for them to complete it?