Algebra Practice Test

What is the difference between the daytime high temperatures and nighttime low temperatures on the Moon, if the high is 130°C and the low is -110°C?

1. 240°C

2. 110°C

3. 130°C

4. 20°C

The correct answer is: 240°C

To calculate the difference between the daytime high temperature and nighttime low temperature on the Moon, you subtract the low temperature from the high temperature. In this case, you have a daytime high of 130°C and a nighttime low of -110°C. The calculation can be expressed as follows: Difference = High temperature - Low temperature Difference = 130°C - (-110°C) Difference = 130°C + 110°C Difference = 240°C This shows that the temperature difference between the extreme high and the extreme low is indeed 240°C. Understanding this concept helps in grasping how to handle temperatures expressed in both positive and negative forms. It's crucial to remember that subtracting a negative number is equivalent to adding the absolute value of that number, which leads to the correct calculation of the temperature difference.