+0

# my Question

0
30
2

C=5 (F−32)

9

The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?

A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of

5 degree Celsius.

A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit.

A temperature increase of

5 degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius.

9

A) I only
B) II only
C) III only
D) I and II only

Oct 14, 2020

#1
0

If I read that the right way, the only one that remotely would fit the equation would be #2. So the answer is b

Oct 14, 2020
#2
+1

For now , just ignore the constant  5/9 *32

c = 5/9 f         when f changes 1    c changes   5/9    so A is true

when f changes 5/9   c changes 25/81...   not 1   so C is untrue

(as an aside when f changes 9/5   c changes 1 )

re-arrange

9/5c = f                   when c changes 1   f changes  9/5  or 1.8     so B is true

D)  I  and II only

Oct 14, 2020
edited by ElectricPavlov  Oct 14, 2020