Answer:
5ºC
Explanation:
Given information:
- The temperature decreased 12 degrees overnight.
- The current temperature is -7ºC.
To find the initial temperature, we can use the following equation:
Initial temperature - temperature decrease = current temperature
Let's substitute the values into the equation:
Initial temperature - 12 = -7
To solve for the initial temperature, we can isolate the variable:
Initial temperature = -7 + 12
Initial temperature = 5ºC
Therefore, the initial temperature was 5ºC.