Answer: Well, it is D.
Explanation:
Here is the explanation. For #1: A temperature increase of 1 degree farenheit is equivalent to a temperature increase of 5/9 degree celsius.
To find this we have to use the equation:
5/9(F-32)=C
DISTRIBUTE
5/9F–160/9
After you solve this (which you should know how to solve) you would get x=5/9 which makes it correct, so a temperature increase of 1 degree farenheit is equal to a temperature increase of 5/9.
For #2: A temperature increase of 1 degree celsious is equivalent to a temperature increase of 1.8 degrees farenheit.
Equation:
5/9(F-32)5/9F
9C + 160F
9/5(C + 1) +329/5C
Then after all of this it should equal to 9/5 which is 1.8
Anyways for #3 you basically do the opposite of #1,
C=5/9(f-32)
5/9(f-32)+x
x=25/9
This does not equal 1 degree celsius so that statement is false and it is only 1 and 2 that are correct.
Comment if you do not understand something :)