Is it possible that they can be the same value?

Question

Just another of my questions. This time it´s about the weather.

At which temperature do degrees celsius and degrees fahrenheit have the same values.

Otra de mis preguntas. Esta vez sobre el tiempo.

A qué temperatura son los valores de grados centígrados y grados fahrenheit idénticos.

Nice tricky question :D - Zizoun, Feb 21, 2010

I wish for a math contest in Spanish - Fidalgo, Feb 21, 2010

Answer 1

Since T= (TF ? 32) ÷ 1.8 and T =TF, we have 0.8T = ? 32, i.e. T = ? 40.

Thus, at ? 40 temperature, degrees celsius and degrees fahrenheit have the same value

Answer 2

Won What? My admiration, because his was the correct answer with an appropriate explanation.

OK :) - ian-hill, Feb 21, 2010

Answer 3

Wow

I didn´t know we had talented mathematicians here. Plus the conversion formula from Fidalgo, who incidently wins.

Won what? :) - ian-hill, Feb 21, 2010

Answer 4

Los valores de grados centígrados y grados fahrenheit son idénticos asi.

16c and 61f

28c and 82f

Now you can draw a graph to find all the other temperatures

Normally (212°F,100°C) and( 32°F, 0°C) , the boiling and freezing points of water at STP are the two points used for graphing the line. - 0074b507, Feb 21, 2010

(and deriving the conversion equation)=slope of line 5/9 crossing y axis at (0,32) (if abcissa, ordinate) is (°C,°F) - 0074b507, Feb 21, 2010

What's wrong with the two I wrote down? - nothing and they are much more "normal". - ian-hill, Feb 21, 2010

Answer 5

Eddy, if he has won, I have no idea what this was about, incidently, jeje, he should get "accepted"

Answer 6

Really? Well... we almost reached 40ºC this week!! Thanks God it's cooler now...

that was minus 40 !!! - ian-hill, Feb 21, 2010

Yes Benz. At -40 both temperatures are the same. - Eddy, Feb 21, 2010

Answer 7

Edit: found a calculator at -40 they are both the same xD