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Suppose the first row of a specific section in an auditorium has 34 seats, row two has 38 seats, row three has 42 seats, etc. How many seats are in this section of the auditorium if there are a total of 20 rows? This is from the sequences and series unit. No work is needed but it is appreciated. Thank you if you help!

User Djot
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1 Answer

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Answer:

1,440

Explanation:

a = 34

d = 38 - 34 = 4

S20 = (20/2)[2(34) + (20-1)(4)]

= 10(144)

1440

User Jwsc
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