The first three terms of an arithmetic progression are 2x, 5 and 6 – x.(i) What is the common difference?(ii) Find the 9th term of the AP.(iii) Find the sum of the first 10 terms of the AP.
The first three terms of an arithmetic progression are 2x, 5 and 6 – x.(i) What is the common difference?(ii) Find the 9th term of the AP.(iii) Find the sum of the first 10 terms of the AP.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter3: Linear And Nonlinear Functions
Section3.6: Arithmetic Sequences As Linear Functions
Problem 5CYU
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Question
The first three terms of an arithmetic progression are 2x, 5 and 6 – x.
(i) What is the common difference?
(ii) Find the 9th term of the AP.
(iii) Find the sum of the first 10 terms of the AP.
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