Tuesday

July 22, 2014

July 22, 2014

Posted by **Dylan** on Sunday, March 28, 2010 at 10:30pm.

C = 5/9 (F - 32)40-32=8c

F = 9/5 C + 32 40+32=86f

- math -
**Reiny**, Sunday, March 28, 2010 at 10:45pmlook at the formula

F = (9/5) C + 32

each degree in C is roughly 2 units on the F scale

so a change of 40 C would be (9/5)(40) or 72 F

or

pick 2 readings which are appr. the same

20C is roughly equal to 70 F

drop each by 40 units

compare -20C with 30 F

-20C is rather nasty cold even for us Canadians, while 30F is almost balmy.

What is your conclusion?

- math -
**Dylan**, Sunday, March 28, 2010 at 10:52pmIt would be more of a drop. But i still done get the formula. did i do the formula right in the first place?

- math -
**Reiny**, Sunday, March 28, 2010 at 11:05pmThere is only one formula, one is merely the rearrangement of the other.

I don't know what you were trying to do.

A line like

C = 5/9 (F - 32)40-32=8c

makes no sense

What you are probably trying to do is find what

40 F is in C, and then what

0 F is in C

ok, if F=40, C = (5/9)(40-32) = 4.44 C

if F = 0, C = (5/9)(0-32) = - 17.78 C

So a change of 40 in F resulted in a change of (4.44-(-17.78)) or 22.22 C roughly 1/2 as noted above in my first reply

- math -
**Dylan**, Sunday, March 28, 2010 at 11:16pmOk now that makes more sense to me. i must have typed it wrong. thank you.

**Related Questions**

Proportions - To convert a temperature in degrees Celsius to degrees Fahrenheit...

math - The temperature in degrees Fahrenheit is equal to 32 more than 9/5 times ...

Algebra - The formula C = 5/9(F-32) can be used to convert Fahrenheit ...

Physics - On the moon the surface temperature ranges from 395 K during the day ...

math - The temperature on one day in January for Phoenix, AZ, is 59 degrees ...

algebra 1 - The formula used to convert temperature measurements from degrees ...

9th grade algrebra - Question 21 (Essay Worth 8 points) [2.08] The formula for ...

Math - To convert a temperature in degrees Celsius to degrees Fahrenheit ...

Math - To convert a temperature in degrees Celsius to degrees Fahrenheit ...

Function - Fahrenheit and Celsius are two measures of temperature. The ...