Question

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. - 7°f c. - 4°f d. 5°f

Explanation:

Step1: Determine the formula

To find the average change per hour, use the formula: average change = total change / number of hours.

Step2: Substitute the values

The total change is \(-35^{\circ}F\) and the number of hours is \(5\). So, we calculate \(\frac{- 35}{5}\).

Step3: Perform the division

\(\frac{-35}{5}=-7\) (since a negative divided by a positive is negative and \(35\div5 = 7\)).

Answer:

B. \(-7^{\circ}F\)