Posted by **soka** on Saturday, August 6, 2011 at 2:56pm.

PLEASE I REALLY NEED HELP WITH THIS

The seats at a local baseball stadium are arranged so that each row has five more seats than the row in front of it. If there are four seats in the first row, how many total seats are in the first 24 rows?

- arithmetic -
**bobpursley**, Saturday, August 6, 2011 at 3:11pm
it is an arithmetic series, with distance 5, and you want the sum of n=24 rows.

Sum=n/2 (a1+an)

where an=a1+d(n-1)

an=4+5(23)=119 check that

sum=24/2 (123)=12*123

check all that. http://www.purplemath.com/modules/series4.htm

## Answer This Question

## Related Questions

- Math - an auditorium has 50 rows of seats. THe first row has 20 seats, the row ...
- Math - A section in a stadium has 20 seats in the first row, 23 seats in the ...
- Math - An auditorium has 150 rows of seats. The first row has 15 seats, the ...
- math (plz help) - In a movie theater, theater A has 30 seats in the first row. ...
- math - In a movie theater, Theater A has 30 seats in the first row. Each next ...
- MAth - The front row of a stadium has 25 seats. Each of the other rows has two ...
- math - Determine the seating capacity of an auditorium with 10 rows of seats if ...
- math arithmetic sequence and series - A theater has 30 seats in the first row, ...
- Math - a stadium has 75 rows starting with 200 seats in the first row. Each ...
- maths - seats are arranged in rows in a auditorium.each row has 5 more than the ...

More Related Questions