Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - Chapter Summary, Review, and Test - Review Exercises - Page 337: 147


(a) Number of workhouse hours by wives in 1964 will be\[34.5+0.3=34.8\] Therefore, the formula for \[{{n}^{th}}\]term will be: \[{{a}_{n}}=34.8-0.3n\] (b) The formula for \[{{n}^{th}}\]term is\[{{a}_{n}}=34.8-0.3n\]. The value of n for the year 2020 is 56. Apply, the formula to solve for\[{{a}_{n}}\]: \[\begin{align} & {{a}_{n}}=34.8-0.3\left( 56 \right) \\ & =18 \end{align}\] Housework hours per week for housewives in the year 2020 will be 18 hours.
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