Answer :
Final answer:
The temperature that is less than both -3.4° Celsius and 1.6° Celsius recorded by Mari is -5.4° Celsius because it is numerically lower than both, indicating a colder temperature. The correct answer is option C.
Explanation:
To determine which temperature in degrees Celsius is less than both -3.4° Celsius and 1.6° Celsius that Mari recorded we need to look for a temperature that is numerically lower than -3.4° Celsius. In terms of temperature, a lower number indicates a colder temperature, regardless of whether the value is positive or negative.
Let's examine the options given:
- A. -2.6° Celsius is higher (warmer) than -3.4° Celsius, so this cannot be the answer.
- B. 3.9° Celsius is higher than both temperatures recorded, therefore cannot be the answer.
- C. -5.4° Celsius is lower (colder) than both -3.4° Celsius and 1.6° Celsius, making this the correct answer.
- D. 0° Celsius is higher than -3.4° Celsius, thus not the correct choice.
Therefore, the temperature that is less than both of the temperatures Mari recorded is -5.4° Celsius.