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

11.4°F - 15.7°F
-4.3°F

At midnight, the temperature is -4.3°F.

Answer 2

Answer:
`4.3^(\circ)F`

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`