Sunday

February 1, 2015

February 1, 2015

Posted by **Emily** on Friday, October 29, 2010 at 8:05pm.

a. write 2 different expressions for the total number of seats in the auditorium. One expression should use addition: the other should involve multiplication. Write an equation that uses these two expressions.

b. Solve the auditorium problem, explaining your reasoning.

- Math -
**Reiny**, Friday, October 29, 2010 at 10:12pmYour problem is dealing with an arithmetic series, where

a=20 , d=1, and n = 50

Sum(n) = n/2[2a + (n-1)d]

= 25[40 + 49(1)]

= 2225

- Math -
**sherri**, Thursday, April 5, 2012 at 9:33pmwhat are two different expressions for the total number of seats in the auditorium

**Answer this Question**

**Related Questions**

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

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

Math - An auditorium has 30 rows of seats. It has 20 seats on the first row, 24 ...

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

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

arithmetic - An auditorium has 20 rows of seats.These are 20 seats in the first ...

math - An auditorium has 30 rows with 10 seats in the first row, 12 in the ...

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