SOLUTION: What is the fifteenth terms of the arithmetic progression whose first term is 6 and common differences is 7

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Question 1205595: What is the fifteenth terms of the arithmetic progression whose first term is 6 and common differences is 7
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!



the arithmetic progression general formula is

given that and


now find the terms
we know first term, so second term is


third term will be


or simply find the next term by adding common difference to previous term












so, first terms are:
,,,,,,,,,,,,,,



Answer by ikleyn(52790)   (Show Source): You can put this solution on YOUR website!
.
What is the fifteenth term of the arithmetic progression
whose first term is 6 and common differences is 7
~~~~~~~~~~~~~~~~~~~

It is 

    6 + (15-1)*7 = 104.    ANSWER

Solved.

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For introductory lessons on arithmetic progressions see
    - Arithmetic progressions
    - The proofs of the formulas for arithmetic progressions
    - Problems on arithmetic progressions
    - Word problems on arithmetic progressions
in this site.



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