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 9 years. Kris can do the same job in 7 years.Mary and Kris work together to complete the same job. However, Mary starts working 3 years after Kris starts to work. How many years will it take for them to complete the job once Kris starts to work? years
Mary can do a certain job in 9 years. Kris can do the same job in 7 years.Mary and Kris work together to complete the same job. However, Mary starts working 3 years after Kris starts to work. How many years will it take for them to complete the job once Kris starts to work?