Waiting for your answers... Answer the following work problem. Report your answer to the nearest tenth of a hour. Joe can do a certain job in 5 hours. Petra can do the same job in 9 hours.If Joe and Petra work together to complete the same job, how many hours will it take for them to complete it? hours
Joe can do a certain job in 5 hours. Petra can do the same job in 9 hours.If Joe and Petra work together to complete the same job, how many hours will it take for them to complete it?