At 5:00

At 5:00 AM, the room temperature was 20°C. After six hours, the reading was 28°C. The temperature rose to how many degrees? What was the average change in temperature per hour?

Correct answer:

Δ =  8 °C
x =  1.3333 °C/h

Step-by-step explanation:

$$\begin{gathered} t_1=20\text{°C} \\ {t}_2=28\text{°C} \\ \Delta =t_2-t_1=28-20=8\text{°C} \end{gathered}$$

$$\begin{gathered} T=6\text{h} \\ x=\frac{\Delta }{T}=\frac{8}{6}=\frac{4}{3}\text{°C/h}=1.3333\text{°C/h} \end{gathered}$$

Try another example