### Home > CC4 > Chapter 11 > Lesson 11.2.6 > Problem 11-118

11-118.

Robby Robot can make a widget in 7 minutes. With the help of Roger Robot, the job can be done in 4 minutes. How long would it take Roger Robot working alone? Homework Help ✎

Let *x* = the number of minutes for Roger Robot to complete the job.

Write and solve an equation using the format *work rate · time = 1 job*