Explanation:
To get the equation to solve the question,
Then
We will have to analyze the question as follow
The capacity of the pipet is 481ml
The rate at which the liquid drain 5ml per second
The chemist wants at most 211 ml to remain in the pipet
Thus,
we can set up the inequality as follow
[tex]481-5t\le211[/tex]
Thus
We can solve for t, where t is the number of seconds
[tex]\begin{gathered} \text{collecting like terms} \\ 481-211\le5t \\ 270\le5t \\ 5t\ge270 \\ t\ge\frac{270}{5} \\ t\ge54 \end{gathered}[/tex]
For the solution in interval notation
[tex]\begin{bmatrix}\mathrm{Solution\colon}\: & \: t\ge\: 54\: \\ \: \mathrm{Interval\: Notation\colon} & \: \lbrack54,\: \infty\: )\end{bmatrix}[/tex]
This is a closed circle at 54 because of the symbol. The region to the right of 54 is shaded
The graph of the inequality is given below
