Question

If -1/5 of a number n is at most 21, what are the possible values of n? How do you write and solve an inequality to find n?

Answer 1

Solution: `n >= -105`. In interval notation expressed as `[-105, oo)`

Explanation:

`-1/5*n <=21 or -n <= 105 or n >= -105`

Solution: `n >= -105`. In interval notation expressed as `[-105, oo)`[Ans]