﻿ The linear relationship between the Fahrenheit scale and Centigrade scale for temperatures is given by

#### Multiple Choice Question (MCQ)

The linear relationship between the Fahrenheit scale and Centigrade scale for temperatures is given by F = \dfrac{9}{5} C+32. Which of the following statements, if any, are true?

A. 68\degree F corresponds to 20\degree C.

B. 40\degree C corresponds to 78\degree F

1. Only A

2. ×

Only B

3. ×

Both A and B

4. ×

Neither A and B

Collected in the board: Linear Equations

Steven Zheng posted 4 months ago

1. Using the formula F = \dfrac{9}{5} C+32 to convert Centigrade scale to Fahrenheit scale. If Centigrade scale is 20\degree C, Fahrenheit scale is

F = \dfrac{9}{5}\cdot 20+32 = 36+32 = 68\degree F

which shows A is correct 68\degree F corresponds to 20\degree C.

If Centigrade scale is 40\degree C, Fahrenheit scale is

F = \dfrac{9}{5}\cdot 40+32 = 72+32 = 104\degree F

which shows B is not correct.

Therefore only A is correct

Steven Zheng posted 4 months ago

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