Waiting for your answers... Answer the following work problem. Report your answer to the nearest tenth of a year. Mary can do a certain job in 11 years. Robert can do the same job in 9 years.Mary and Robert work together to complete the same job. However, Mary starts working 3 years after Robert starts to work. How many years will it take for them to complete the job once Robert starts to work? years
Mary can do a certain job in 11 years. Robert can do the same job in 9 years.Mary and Robert work together to complete the same job. However, Mary starts working 3 years after Robert starts to work. How many years will it take for them to complete the job once Robert starts to work?