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An= 27+(n-1)(5) find a_8

User Gzen
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1 Answer

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we have the following formula


a_n=27+(n-1)\cdot5

In order to find the result when n=8, we must substite this value in our formula. It yields,


a_8=27+(8-1)\cdot5

then, we have


\begin{gathered} a_8=27+7\cdot5 \\ a_8=27+35 \\ a_8=62 \end{gathered}

so, the answer is 62

User Oxald
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