Michael E. answered • 06/29/18

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College and High School Math for Classes and Test Prep

Hello Sarah,

Let H be the number of haircuts in one day. Then the inequality would look like:

66 + 13H ≥ 170,

→ 13H ≥ 104 (by subtracting 66 from both sides)

→ H ≥ 8 (by dividing both sides by 13).

So, the hairstylist has to do at least 8 haircuts in one day to make at least $170.

I hope the above helps, and thank you for posting the question.

Michael Ehlers