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January 25, 2015

January 25, 2015

Posted by **cora evans** on Tuesday, January 21, 2014 at 2:59pm.

C= (F-32)*5/9=8.3, or (47-32)x5*9= 8.3

- math -
**Damon**, Tuesday, January 21, 2014 at 3:14pm(C,F)

(0,32)

(100, 212)

F = m C + b

m = (212 -32)/100 = 180/100 = 9/5

so

F = (9/5) C + b

32 = (9/5)(0) + b

b =32

so

F = (9/5) C + 32

or

F-32 = (9/5)C

C = (5/9)(F-32) checks with you

If C = 8.3 deg C

then

F = (9/5)(8.3) + 32

F = 47 deg F

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