The temperature falls from 0 degrees to -12 1/4 degrees in 3 1/2 hours. Which expression finds the change in temperature per hour?

The temperature falls from 0 degrees to -12 1/4 degrees in 3 1/2

The expression to find the change in temperature per hour

[tex] \frac{0-(-12 \frac{1}{4})}{3 \frac{1}{2}} [/tex]

So, the change in temperature = [tex] \frac{0-(-12 \frac{1}{4})}{3 \frac{1}{2}} = \frac{12 \frac{1}{4}}{3 \frac{1}{2}} = \frac{ \frac{49}{4}}{ \frac{7}{2}} = \frac{49*2}{7*4}= \frac{7}{2}=3.5 [/tex] degree/hour

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MrRoyal MrRoyal · Answer 2 · 2022-07-15T12:18:31+02:00

The change in temperature is -3 1/2 degree per hour

How to determine the change in temperature?

The given parameters are:

Temperature = -12 1/4 degrees

Time = 3 1/2 hours

The change in temperature per hour is calculated as:

Change = Temperature/Time

This gives

Change = -12 1/4 degrees / 3 1/2 hours

Evaluate the quotient

Change = -3 1/2 degree per hours

Hence, the change in temperature is -3 1/2 degree per hour