Concept explainers
To form an arithmetic sequence and write a formula for nth term.
Answer to Problem 3.6.4P
S’s pages left sequence is,
430, 410, 390, 370, 350…
The formula for nth term is,
A’s pages left sequence is,
430, 400, 370, 350, 320…
The formula for nth term is,
Explanation of Solution
Given information:
S and A are reading the Se book of 430 pages.
A reds 30 pages every day.
S created the table for his reading,
Day | Pages left |
1 | 430 |
2 | 410 |
3 | 390 |
4 | 370 |
Formula used:
Sequence formation.
Calculation:
For S,
From the given table, concluding the sequence as,
430, 410, 390, 370, 350…
The difference in number of pages is constant, that is,
20 pages.
For the function of nth term,
For A,
He reads 30 pages every day, hence the difference in pages is 30.
Therefore the function for nth term is,
The sequence is,
430, 400, 370, 350, 320…
Chapter ISG Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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