There are 12 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of seats. How many rows are empty?

Do you mean 12 rows in the auditorium?

Sorry I meant there are 112 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of seats. How many rows are empty?

Think about what I posted last night in answer to your question.

http://www.jiskha.com/display.cgi?id=1422843887

To find the number of empty rows in the school auditorium, we need to determine the total number of rows and subtract the number of rows that are filled with people.

We can start by finding the total number of rows. Since there are 7 seats in each row and 70 people seated, we divide the total number of seated people by the number of seats per row:

Total number of rows = Total number of seated people / Number of seats per row
= 70 / 7
= 10

Therefore, there are a total of 10 rows in the auditorium.

Next, we need to determine the number of rows that are filled with people. Since there are 7 seats in each row, the number of filled rows would be the total number of seated people divided by the number of seats per row:

Number of filled rows = Total number of seated people / Number of seats per row
= 70 / 7
= 10

Therefore, there are a total of 10 rows filled with people.

To find the number of empty rows, we subtract the number of filled rows from the total number of rows:

Number of empty rows = Total number of rows - Number of filled rows
= 10 - 10
= 0

Therefore, there are no empty rows in the school auditorium.