In an Arithmetic Progression the 8th term plus the 4th term equals the 13th term. If the 18th term is 76 what is the sum of the first 20 terms.?

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter9: Sequences, Probability And Counting Theory
Section: Chapter Questions
Problem 7RE: An arithmetic sequence has the first term a1=18 and common difference d=8 . What are the first five...
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In an Arithmetic Progression the 8th term plus the 4th term equals the 13th term. If the 18th term is 76 what is the sum of the first 20 terms.?

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