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If you want to convert 40 degrees Celsius to degrees Fahrenheit, you can do it this way:
40°C * 9/5 + 32 = 104°F

The correct result is B. 104°F.

Other options:
A. 72°F = 22.2°C
C. 54°F = 12.2°C
D. 22°F = -5.56°C

Answer:

Option B is correct.

Temperature in degree Fahrenheit is, [tex]104 ^{\circ}F[/tex]

Step-by-step explanation:

We will use the temperature conversion formula from  [tex]^{\circ}C[/tex] to   [tex]^{\circ}F[/tex] as follows:

[tex]F =\frac{9}{5}C+32[/tex]

where

F is the Fahrenheit in degree,

C is the Celsius in degree.

Given the statement: If a thermometer indicates 40 degrees Celsius.

⇒[tex]C = 40^{\circ}[/tex]

Substitute this value in above formula to solve for F;

[tex]F =\frac{9}{5}(40)+32[/tex]

[tex]F =72+32[/tex]

Simplify:

F = 104 degree.

therefore, the temperature in degree Fahrenheit is, [tex]104 ^{\circ}F[/tex]


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