Question

at 12:00 pm, the temperature in muncie was 2.5 degrees celsius. by midnight, the temperature dropped 5 degrees. show the change in temperature on the thermometer.

Explanation:

Step1: Determine the temperature change

The initial temperature is \(2.5\) degrees Celsius. The temperature dropped \(5\) degrees. A drop in temperature means we subtract the number of degrees dropped from the initial temperature.

Step2: Calculate the final temperature

$$2.5 - 5=- 2.5$$

We start at \(2.5\) on the thermometer and move down \(5\) units (since the temperature dropped). Each major mark is \(1\) degree and each minor mark is \(0.5\) degree.

Answer:

The final temperature is \(-2.5\) degrees Celsius. On the thermometer, we would start at the \(2.5\) mark (which is \(2\) major marks and \(1\) minor mark above \(2\)) and then move down \(5\) units ( \(5\) major marks or \(10\) minor marks). So we end up at \(-2.5\) ( \(2\) major marks and \(1\) minor mark below \(- 2\)).