The temperature 10

The temperature in a freezer is -15°C, and it increases by 3°C.

Correct answer:

t₂ =  -12 °C

Step-by-step explanation:

$$\begin{gathered} t_1=-15\text{ °C } \\ {t}_2=t_1+3=(-15)+3=-12\text{°C} \end{gathered}$$

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