Question

question 3 of 25
the electricity goes out in a house. the temperature in the house changes by -35°f in 5 hours. on average, by how many degrees is the temperature changing per hour?
a. 3°f
b. -4°f
c. 5°f
d. -7°f

Explanation:

Step1: Define average rate formula

$\text{Average change per hour} = \frac{\text{Total temperature change}}{\text{Total time}}$

Step2: Substitute given values

$\text{Average change per hour} = \frac{-35^\circ\text{F}}{5}$

Step3: Calculate the result

$\text{Average change per hour} = -7^\circ\text{F}$

Answer:

D. -7°F