Waiting for your answers... Answer the following work problem. Report your answers to the nearest tenth of a week. When David and Mark work together to complete a job it takes them 7 weeks. However, when Mark works alone, it takes 5 weeks longer than when David works alone.How long would it take David and Mark to do the job if each of them works alone?David's solo rate is weeks.Mark's solo rate is weeks.
Answer the following work problem. Report your answers to the nearest tenth of a week.
When David and Mark work together to complete a job it takes them 7 weeks. However, when Mark works alone, it takes 5 weeks longer than when David works alone.How long would it take David and Mark to do the job if each of them works alone?