Question

the temperature at 5 p.m. was 84°f. by 6 a.m., the change in temperature was -37°f. which estimate is closest to the temperature at 6 a.m.?

Explanation:

Step1: Identify the initial - temp and change

Initial temperature $T_1 = 84^{\circ}F$, change $\Delta T=- 37^{\circ}F$.

Step2: Calculate the final temperature

$T_2=T_1+\Delta T=84+( - 37)=84 - 37 = 47^{\circ}F$. The closest estimate to $47^{\circ}F$ among the options is $40^{\circ}F$.

Answer:

$40^{\circ}F$