Mathematics, 25.06.2019 11:30 blythephillips2734
Find the 50th term of this arithmetic sequence: 6, 13, 20, 27, .
Answers: 2
![\bf 6~~,~~\stackrel{6+7}{13}~~,~~\stackrel{13+7}{20}~~,~~\stackrel{20+7}{27}~\hspace{10em} d=7 \\\\[-0.35em] ~\dotfill\\\\ n^{th}\textit{ term of an arithmetic sequence} \\\\ a_n=a_1+(n-1)d\qquad \begin{cases} n=n^{th}\ term\\ a_1=\textit{first term's value}\\ d=\textit{common difference}\\[-0.5em] \hrulefill\\ d=7\\ a_1=6\\ n=50 \end{cases} \\\\\\ a_{50}=6+(50-1)7\implies a_{50}=6+(49)7\implies a_{50}=6+343\implies a_{50}=349](/tpl/images/0015/4886/ca3db.png)
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Find the 50th term of this arithmetic sequence: 6, 13, 20, 27, ....
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