When is farenheit and celcius the same degrees, and what is the formula for it?

Question

When is farenheit and celcius the same degrees, and what is the formula for it?

Answer 1

-40

Answer 2

To calculate the formulate find the ratio of

(Temp-Freezing)/(Boiling-Freezing) in both measuring systems and then set them equal.

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(F-32)/(212-32) = (C-0)/(100-0) simplify to

F = 9/5C  + 32

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Find the temperature when Fahrenheit and Centigrade are equal.

F=C

C=9/5C+32

-4/5C=32

C=-40

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Some people find it easier to remember that

C= 10 Celsius is same temperature as F=50 Fahrenheit

Adding 5 degrees Celsius is the same as

adding 9 degrees Fahrenheit

C=10, F=50

C=15, F=59

C=20, F=68

C=25, F=77

C=30, F=86

C=35, F=95

C=40, F=104

Answer 3

9/5 - 32 for converting Fahrenheit to celcius

5/9 + 32 for converting celcius to fahrenheight

Answer 4

-40F and -40C are the same value I don't remember the formula right off hand but I'm sure you could google it.

Answer 5

One of the easy formula to remember C= (F-32)/2

Negative 40 on both sides will be pointing to same temp...

Answer 6

no

http://www.wbuf.noaa.gov/tempfc.htm

that's a converter web site

Answer 7

-40 degrees

How to get that

Degrees C = (5/9)*(Deg. F - 32) or C = (5/9)(F-32)

Deg. F = (9/5)(Deg. C) + 32 or F = (9/5)C+32

Since F = C, just do a substitution in either equation. Let's use the second one by substituting F for C and solving for F.

F = (9/5)F+32

-32 = (4/5)F

(5/4)(-32) = F

F = -40

It wouldn't matter which equation you used or which variable you replaced. You will get the same answer.