Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many joined when the enrollment was 1150 in Sioux City, Iowa?

### Inputs:
table_name: table, columns: ['Institution', 'Location', 'Founded', 'Type', 'Enrollment', 'Joined', 'Nickname']

### Response:
SELECT Joined FROM table WHERE Enrollment = 1150 AND Location = Sioux City, Iowa