If Governor Sandoval gave 12 commencement addresses, and Governor Sandoval gave twice as many as Governor Hawkins, then Governor Hawkins gave 12/2 = 6 commencement addresses.
If Governor Sloan gave ten more commencement addresses than Governor Sandoval, then Governor Sloan gave 12 + 10 = 22 commencement addresses.
Altogether, the three of them gave 12 + 6 + 22 = 40 commencement addresses.
#### 40
The answer is: 40
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
In her first term, Governor Sandoval gave twice as many commencement addresses as Governor Hawkins. Governor Sloan gave ten more commencement addresses than Governor Sandoval in the same amount of time. If Governor Sandoval gave 12 commencement addresses, how many commencement addresses did the three of them give altogether?

### Answer:
