Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 11 - Section 11.4 - Partial Sums of Arithmetic and Geometric Sequences - Exercise Set - Page 659: 47

Answer

The total amount to pay for the room and board for 30 days is $\$10,737,418.23$.

Work Step by Step

In modeling this situation with a geometric sequence, $a_{1} = 0.01$ and $r = 2$, the general term is $a_{n} = 0.01(2)^{n-1}$ where n is the number of days charged. The total amount to pay for the room and board for 30 days is $\sum\limits_{n=1}^{30} a_{n} = \sum\limits_{n=1}^{30} 0.01(2)^{n-1}$ = $\frac{(0.01)(1 - 2^{30})}{(1 - 2)}$ = $\$10,737,418.23$
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