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oksano4ka [1.4K]
4 years ago
7

C=

Mathematics
2 answers:
BabaBlast [244]4 years ago
6 0

Answer:

D) I and II only


Step-by-step explanation:

C= 5/9(F−32)


If F goes up 1 degree  (33 degrees)

C= 5/9(33−32)

C = 5/9 *1 = 5/9

So  the first 1 is true


If C goes up 1 degree  

1= 5/9(F−32)

Multiply each side by 9/5

9/5 = 9/5 * 5/9 (F-32)

9/5 = (F-32)

1.8 = F-32

Add 32 to each side

33.8 =F

The change from 33.8 to 32  is 1.8 degrees F  so 2 is true


If F goes up 5/9 degree  

C= 5/9(5/9)

C = 25/49

False


Delicious77 [7]4 years ago
6 0

Answer:

D) I and II only

Step-by-step explanation:

C=5/9*(F−32)

change of 1deg. in F = 5/9deg. change in C

conversely

change of 1deg. in C = 9/5=1.8deg. change in F

so I n II is true

III 5/9deg in F = 5/9*5/9 = 25/81deg. change in C <> 1deg

so III is false

ans is D) I and II only



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