Ayala Ball
07/20/2023 · Middle School
33. Temperature On September 10 in midstate New Hampshire, the temperature at 6 A.M. was \( 45^{\circ} \mathrm{F} \). At 2 P.M. on the same day, the temperature was \( 77^{\circ} \mathrm{F} \). Find the average rate of change in temperature per hour.
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Step-by-step Solution
To find the average rate of change in temperature per hour, we can use the formula for the average rate of change:
\[
\text{Average Rate of Change} = \frac{\text{Change in Temperature}}{\text{Change in Time}}
\]
1. **Determine the change in temperature:**
- Temperature at 6 A.M. = \( 45^{\circ} \mathrm{F} \)
- Temperature at 2 P.M. = \( 77^{\circ} \mathrm{F} \)
Change in temperature:
\[
\Delta T = 77^{\circ} \mathrm{F} - 45^{\circ} \mathrm{F} = 32^{\circ} \mathrm{F}
\]
2. **Determine the change in time:**
- From 6 A.M. to 2 P.M. is 8 hours.
Change in time:
\[
\Delta t = 8 \text{ hours}
\]
3. **Calculate the average rate of change:**
\[
\text{Average Rate of Change} = \frac{32^{\circ} \mathrm{F}}{8 \text{ hours}} = 4^{\circ} \mathrm{F} \text{ per hour}
\]
Thus, the average rate of change in temperature per hour is \( 4^{\circ} \mathrm{F} \) per hour.
Quick Answer
The average rate of change in temperature per hour is \( 4^{\circ} \mathrm{F} \) per hour.
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