### Home > CC4 > Chapter 11 > Lesson 11.2.3 > Problem 11-81

11-81.

RJ can paint a wall in 45 minutes. His friend, Delaney, can paint the same wall in 30 minutes. They decide to paint the wall together. How long in minutes would it take them to paint the wall together? Homework Help ✎

Review the hints on problem 11-76.