# If a_n=1-5n, what is a_10?

Dec 19, 2016

${a}_{10} = - 49$

#### Explanation:

This is a formula for the nth term of an arithmetic sequence. By the notation ${a}_{10}$, $n = 10$, or you will find the tenth term of the sequence.

${a}_{10} = 1 - 5 \left(10\right)$

${a}_{10} = 1 - 50$

${a}_{10} = - 49$

Hopefully this helps!