Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_93 (decile INTEGER, name VARCHAR, gender VARCHAR, authority VARCHAR)

### Question ###
How many deciles have a Gender of coed, an Authority of state, and a Name of mount maunganui school?

### Accurate SQL ###

SELECT SUM(decile) FROM table_name_93 WHERE gender = "coed" AND authority = "state" AND name = "mount maunganui school"