Answer:
-3.5 degrees per hour
[tex] - 3.5t[/tex]
Step-by-step explanation:
The total change is temperature is -12.25 degrees.
The total time is 3.5 hours.
This means that temperature changes by -3.5 degrees per hour (-12.25 degrees ÷ 3.5 hours).
As an expression of hours, simple multiply the coefficient by a variable. I'm assuming the letter t for time (where t is the number of hours):
[tex] - 3.5t[/tex]
Answer:
The change in temperature per hour is 3.5°/hr or 7/2° per hour
Step-by-step explanation:
Given
The temperature falls from 0° to -12¼° in 3½ hours
This translates to the following;
Initial temperature, t1 = 0°
Final temperature, t2 = -12¼°
Time taken, t = 3½ hour
First, we calculate the change in temperature
Let ∆T represent change in temperature
∆T = Initial Temperature - Final Temperature
∆T = t1 - t2
∆T = 0° - (-12¼°)
∆T = 0° + 12¼°
∆T = 12¼°
Rate of change of temperature per hour is calculated by dividing the change in temperature by time taken.
The express is as follows;
∆T/t
By substituton.
Rate of change = 12¼ ÷ 3½
Rate of change = 3.5°/hr
Hence, the change in temperature per hour is 3.5°/hr or 7/2° per hour
