Wednesday

July 23, 2014

July 23, 2014

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

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 3:11pmit 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

**Related Questions**

Math - an auditorium has 50 rows of seats. THe first row has 20 seats, the row ...

MAth - The front row of a stadium has 25 seats. Each of the other rows has two ...

math (plz help) - In a movie theater, theater A has 30 seats in the first row. ...

maths - seats are arranged in rows in a auditorium.each row has 5 more than the ...

math - In a movie theater, Theater A has 30 seats in the first row. Each next ...

math - Determine the seating capacity of an auditorium with 10 rows of seats if ...

math - In a movie theater, theater A has 30 seats in the first row. Each next ...

math (plz help) - Ms. Sue has not answered this question where all work must be ...

math- Algebra 2 - An auditorium has 49 rows of seats. The first row contains 40 ...

Math - The first row of a concert hall has 25 seats and each row after the first...