Waiting for your answers... Answer the following work problem. Report your answer to the nearest tenth of a minute. Alone, Petra can do a certain job in 20 minutes. When Petra and Sue work together, they can finish the same job in 11 minutes.How long would it take Sue to do the job alone? minutes
Answer the following work problem. Report your answer to the nearest tenth of a minute.
Alone, Petra can do a certain job in 20 minutes. When Petra and Sue work together, they can finish the same job in 11 minutes.How long would it take Sue to do the job alone?