Waiting for your answers... Answer the following work problem. Report your answer to the nearest tenth of a minute. Alone, Mary can do a certain job in 13 minutes. When Mary and Joe work together, they can finish the same job in 8 minutes.How long would it take Joe to do the job alone? minutes

Alone, Mary can do a certain job in 13 minutes. When Mary and Joe work together, they can finish the same job in 8 minutes.How long would it take Joe to do the job alone?