Waiting for your answers... Answer the following work problem. Report your answers to the nearest tenth of a hour. When Mary and Frank work together to complete a job it takes them 12 hours. However, when Frank works alone, it takes 4 hours longer than when Mary works alone.How long would it take Mary and Frank to do the job if each of them works alone?Mary's solo rate is hours.Frank's solo rate is hours.
Answer the following work problem. Report your answers to the nearest tenth of a hour.
When Mary and Frank work together to complete a job it takes them 12 hours. However, when Frank works alone, it takes 4 hours longer than when Mary works alone.How long would it take Mary and Frank to do the job if each of them works alone?