A difference of temperature of [tex]$40^{\circ} C$[/tex] is equivalent to a difference of:

(1) [tex]$45^{\circ} F$[/tex]
(2) [tex][tex]$72^{\circ} F$[/tex][/tex]
(3) [tex]$32^{\circ} F$[/tex]
(4) [tex]$25^{\circ} F$[/tex]



Answer :

To solve this problem and convert a temperature difference from degrees Celsius to degrees Fahrenheit, we use the conversion formula for temperature differences. The formula to convert a temperature difference from Celsius to Fahrenheit is based on the relationship between the two scales:

[tex]\[ \Delta T_F = \Delta T_C \times \frac{9}{5} \][/tex]

Let's go through this step-by-step:

1. Identify the given temperature difference in Celsius:
[tex]\[ \Delta T_C = 40^\circ \text{C} \][/tex]

2. Use the conversion factor for temperature differences:
- The conversion factor from Celsius to Fahrenheit is [tex]\(\frac{9}{5}\)[/tex].

3. Apply the conversion factor:
[tex]\[ \Delta T_F = 40^\circ \text{C} \times \frac{9}{5} \][/tex]

4. Calculate the result:
[tex]\[ \Delta T_F = 40 \times 1.8 = 72^\circ \text{F} \][/tex]

Therefore, a temperature difference of [tex]\(40^\circ \text{C}\)[/tex] is equivalent to a temperature difference of [tex]\(72^\circ \text{F}\)[/tex].

Looking at the given options:

(1) [tex]\(45^\circ \text{F}\)[/tex]

(2) [tex]\(72^\circ \text{F}\)[/tex]

(3) [tex]\(32^\circ \text{F}\)[/tex]

(4) [tex]\(25^\circ \text{F}\)[/tex]

The correct answer is:

(2) [tex]\(72^\circ \text{F}\)[/tex]