Waiting for your answers... Answer the following work problem. Report your answers to the nearest tenth of a week. When Robert and David work together to complete a job it takes them 13 weeks. However, when David works alone, it takes 3 weeks longer than when Robert works alone.How long would it take Robert and David to do the job if each of them works alone?Robert's solo rate is weeks.David's solo rate is weeks.
Answer the following work problem. Report your answers to the nearest tenth of a week.
When Robert and David work together to complete a job it takes them 13 weeks. However, when David works alone, it takes 3 weeks longer than when Robert works alone.How long would it take Robert and David to do the job if each of them works alone?