Concept explainers
a.
To Calculate : To calculate the number of seats in ROW 25.
a.
Answer to Problem 9CT
The number of seats in ROW 25 is
Explanation of Solution
Given information : First row contain
According to the question, we get an arithmetic sequence of number of seats in each row as follow-
Number of seats in first row
Number of seats in second row is three more
Number of seats in third row is three more
and so on.
Hence, we get the sequence
Then, nth term of this sequence will be
Therefore, to calculate the number of seats in ROW 25, we need to calculate the 25th term of the above sequence,
Thus, the number of seats in ROW 25is
b.
To determine the row which contain
b.
Answer to Problem 9CT
The ROW 17 contain
Explanation of Solution
Given information : First row contain
According to the question, we get an arithmetic sequence of number of seats in each row as follow-
Number of seats in first row
Number of seats in second row is three more
Number of seats in third row is three more
and so on.
Hence, we get the sequence
Then, nth term of this sequence will be
Therefore, to determine the number of row that contain
Thus, the ROW 17 contains
Chapter 4 Solutions
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
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