Ophelia

Ophelia recorded the temperature of a cold store every two hours.
1. At 6 am, it was -4°C, and at 8 am, it was -1°C. By how much did the temperature rise?
2. The temperature went up by 5°C in the next two hours. What was the temperature at 10 AM?

Final Answer:

t₁ =  3 °C
t₂ =  4 °C

Step-by-step explanation:

$$\begin{gathered} A=-4\text{°C} \\ B=-1\text{°C} \\ {t}_1=B-A=(-1)-(-4)=3\text{°C} \end{gathered}$$

$t_2=B+5=(-1)+5=4\text{°C}$

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