A 20-row theater has three sections of seating. In each section,

the number of seats in a row increases by one with each successive row. The

first row of the middle section has 10 seats. The first row of each of the two side

sections has 4 seats.

a. Find the total number of chairs in each section. Then find the total seating

capacity of the theater.

b. Write an arithmetic series to represent each section.

Question

21 April, 10:03

+1

Answers (2)

Know the Answer?

Hines · Answer 1

The total no. of chairs are 930.

for each of the end sections ∑ i=4 23 i

Malcolm Harper · Answer 2

Malcolm Harper 21 April, 10:27

0

I'm not 100% sure but try A.