Question

for water to be a liquid, its temperature must be within 50 kelvin of 323 kelvin. which equation can be used to determine the minimum and maximum temperatures between which water is a liquid?
|323 - 50| = x
|323 + 50| = x
|x - 323| = 50
|x + 323| = 50

Explanation:

Step1: Understand absolute - value meaning

The distance between a temperature $x$ and 323 Kelvin should be 50 Kelvin. The formula for the distance between two numbers $a$ and $b$ is $|a - b|$. Here, $a=x$ and $b = 323$, and the distance is 50.
So the equation is $|x - 323|=50$.

Answer:

C. $|x - 323| = 50$