Answer:
Step-by-step explanation:
Givens
When the problem says "steadily", it means that the temperature is falling down in a linear way.
Now, to find the rate between temperature and time, we just need to divide the difference of temperature and the number of hours,
[tex]r=\frac{\Delta T}{h}=\frac{7-17}{12}=\frac{-10}{12} =-\frac{5}{6}\approx -0.83[/tex]
Therefore, the temperature fell 5 °F per every six hours, which is approximately 0.83 °F per hour.