Waiting for your answers... Answer the following work problem. Report your answer to the nearest tenth of a week. David can do a certain job in 5 weeks. Petra can do the same job in 11 weeks.David and Petra work together to complete the same job. However, David starts working 2 weeks after Petra starts to work. How many weeks will it take for them to complete the job once Petra starts to work? weeks
David can do a certain job in 5 weeks. Petra can do the same job in 11 weeks.David and Petra work together to complete the same job. However, David starts working 2 weeks after Petra starts to work. How many weeks will it take for them to complete the job once Petra starts to work?