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= \(4.3^{\circ}F\)
