Waiting for your answers... Answer the following work problem. Report your answers to the nearest tenth of a minute. When David and Mary work together to complete a job it takes them 12 minutes. However, when Mary works alone, it takes 2 minutes longer than when David works alone.How long would it take David and Mary to do the job if each of them works alone?David's solo rate is minutes.Mary's solo rate is minutes.
Answer the following work problem. Report your answers to the nearest tenth of a minute.
When David and Mary work together to complete a job it takes them 12 minutes. However, when Mary works alone, it takes 2 minutes longer than when David works alone.How long would it take David and Mary to do the job if each of them works alone?