At what point are Fahrenheit and Celsius the same?

Question

Using the formula

9/5=F-32/C

I know the answer is -40 degrees, I just can't figure out how to use the formula to get this.

Thanks in advance!

Answer 1

using the formula is           c=(f-32)5/9. so we get the answer is

      -40 degree c.

Answer 2

(F - 32) x 5/9 = C

F-32=c(9/5)

F=C(9/5)+32

(x-32)(5/9)=x(9/5)+32

5/9x-160/9=9/5x+32

-160/9-32=9/5x-5/9x

-160/9-288/9=(81-25)/45x

-448/9=56/45x

(-448/9)(45/56)=x

x=-40

Answer 3

The standard formula is

F=9/5C+32

s******g around with that, it's a simple substitution where F=C (because that's what you're trying to find..the point where F value is equal to C value)

Then you get C = 9/5C + 32 or F = 9/5F + 32

Either way you get C (or F) = -40.

Thanks for keeping my math skills sharp, bro.

Answer 4

i do not know were u get your formula From and the answers does not seem right either i tried to substituted but i do not get the correct answer

my way of tackling this problem is as follows  you have a formula but it looks like there is something wrong

I f you take Celsius as starting point then 0 degrees c is freezing point and 100 degrees c is boiling point with Fahrenheit 32 degrees is freezing point and 212 degrees is boil point

now you get 100 divisions Celsius is 180 divisions Fahrenheit therefore a 1division c is 1.8 div Fahrenheit. from this you get  c= 1.8(f)+32

                                 c=  1.8*(-40)+32

                                  c= -72+32

                                   c= -40

                                  

                                    f=(c-32)/1.8

                                    f=(-40-32)/1.8

                                      = -40

Answer 5

[°F] = [°C] × 9⁄5 + 32

Answer 6

Okay: Google you Q, Fahrenheit to Celsius

Lars.