.
What is the fifteenth term of the arithmetic progression
whose first term is 6 and common differences is 7
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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.