Question

Yesterday the temperature at noon was 11.4°F. By Midnight, the temperature had decreased by 15.7 degrees. What was the temperature at midnight?

Answer 1

Answer: $4.3^{\circ}F$

Step-by-step explanation:

Given: Yesterday the temperature at noon = $11.4^{\circ}F$

If by the midnight, the decrease in the temperature = $15.7^{\circ}F$

Now, let x be the temperature at midnight.

Then according to the question,

$x=11.4^{\circ}F-15.7^{\circ}F\\\Rightarrow\ x=(11.4-15.7)^{\circ}F\\\Rightarrow\ x=4.3^{\circ}F$

hence, the temperature at midnight= $4.3^{\circ}F$

Answer 2

11.4°F - 15.7°F
-4.3°F

At midnight, the temperature is -4.3°F.