Q. 30 - Algebra 2

Question

If$a_n=1-5n$  , what is  $a_{10}$ ?

Step-by-Step Solution

Answer

The value of $a_{10}=-49$ .

Step 1. Given Information.

Given arithmetic sequence is described by  $a_n=1-5n$

Step 2. Calculation .

Plugging the values in the equation:

$\begin{array}{l}{a}_n=1-5n\\ a_{10}=1-5\left(10\right)\\ a_{10}=1-50\\ a_{10}=-49\end{array}$

Step 3. Conclusion .

Hence, $a_{10}=-49$ .