Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 10 - Review Exercises - Page 1124: 30


$1470$ seats

Work Step by Step

We need to use the formula $ a_n =a_1+(n-1) d $ Here, $ a_1=25$ and $ d=1$ Now, $ S_n=\dfrac{n(a_1+a_n)}{2}$ Now, $ S_{35}=\dfrac{35(25+59)}{2}=1470$ seats
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