They gave me the equation:f=9/5c+32
so then they told me to find the degrees celsuis and I did this:9divided by 5 =1.8+23 which was the temp. in fahrenheit,but now they want me to use the same equation to find the celsuis and I don't know who to do it,can someone help me please...
2006-09-28 07:20:31 · 8 answers · asked by karla g 1 in Science & Mathematics ➔ Mathematics
Converting Fahrenheit to Celsius
The Fahrenheit Formula
F = 9/5C + 32
5/9 F = 5/9(9/5)C + 32
multiplying both sides of the equation 9/5 by its reciprocal 5/9
5/9F = C + 32
5/9F - 32 = C + 32 - 32
Subtracting - 32 from both sides of the equation
5/9F - 32 = C This is the Celsius Formula
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Converting Celsius to Fahrenheit
The Celsius Formula
5/9F - 32 = C
9/5(5/9)F - 32 = 9/5C
Multiplying both sides of the equation 5/9 by its reciprocal 9/5
F - 32 = 9/5C
F - 32 + 32 = 9/5C + 32
Adding + 32 to both sides of the equation
F = 9/5C + 32 This is the Fahrenheit Formula
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Finding Fahrenheit Degrees
Example
Celsius equals 30°
Insert 30° into the formula
F = 9/5C + 32
F = 9/5(30) + 32
F = 9 x 30 = 270
F = 270/5 = 54 + 32
F =54 + 32
F = 86°
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Finding Celsius Degrees
Example
Fahrenheit equals 86°
C = 5/9F - 32
C = 5/9(86 - 32)
C = 5/9( 54)
C = 5 x 54 = 270
C = 270/ 9
C = 30°
2006-09-28 08:03:52 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋
Do you mean that the first time they wanted you to find the temperature in Fahrenheit, given a temperature in Celcius? The equation, as you wrote, is F = 1.8C + 32. You just need to use simple algebra to get a function for C in terms of F instead of F in terms of C. F = (9/5)C + 32, so C = (5/9)(F - 32).
2006-09-28 14:24:22 · answer #2 · answered by DavidK93 7 · 0⤊ 0⤋
Convert.
C=(F-32)*(5/9)
Subtract 32 degrees from the Fahrenheit temperature. This tells you the number of Fahrenheit degrees above freezing you have.
Each Fahrenheit degree is 9/5 larger so you must multiple the number you get above by 5/9 to get the degrees Celcius.
2006-09-28 14:22:59 · answer #3 · answered by Richard 7 · 4⤊ 2⤋
You could either use the formula C = (F-32) *5/9 or add http://www.onlineconversion.com/temperature.htm to your favorites and make your life easier ;)
2006-09-28 17:01:45 · answer #4 · answered by Nena 3 · 0⤊ 0⤋
c=5/9(f-32)
2006-09-28 14:23:39 · answer #5 · answered by racer 1 · 0⤊ 0⤋
you need the formula to transpose f=9/5c+32 to C=. It's easy.
f-32=9/5C
9/5C=F-32 .....
You do the rest.
2006-09-28 14:23:15 · answer #6 · answered by shake_um 5 · 0⤊ 0⤋
(f-32)*5/9=C
C(9/5)+32=F
just substitutte what is given and find the unknown
you can use either equation
2006-09-28 14:23:22 · answer #7 · answered by raj 7 · 0⤊ 0⤋
F = 9/5*(C) + 32
C = 5/9*(F-32)
2006-09-28 14:24:10 · answer #8 · answered by Anonymous · 0⤊ 0⤋