High School

1. It is currently 25° Celsius. What is the temperature in Fahrenheit?

(A) 71° F
(B) 77° F
(C) 84° F
(D) 87° F

2. It is currently 35° Celsius. What is the temperature in Fahrenheit?

(A) 95° F
(B) 93° F
(C) 85° F
(D) 86° F

3. It is currently 19° Celsius. What is the temperature in Fahrenheit?

(A) about 34° F
(B) about 46° F
(C) about 56° F
(D) about 66° F

4. It is currently 41° Celsius. What is the temperature in Fahrenheit?

(A) about 96° F
(B) about 97° F
(C) about 106° F
(D) about 108° F

Answer :

To convert temperatures from Celsius to Fahrenheit, we use the formula: [tex]F = \frac{9}{5}C + 32[/tex] This formula helps us find the equivalent temperature in Fahrenheit when the temperature in Celsius is given.

Let's go through each problem step-by-step:

  1. Convert 25° Celsius to Fahrenheit:
    [tex]F = \frac{9}{5} \times 25 + 32[/tex]
    [tex]F = 45 + 32[/tex]
    [tex]F = 77[/tex]
    So, the temperature is 77° F. Therefore, option (B) is correct.

  2. Convert 35° Celsius to Fahrenheit:
    [tex]F = \frac{9}{5} \times 35 + 32[/tex]
    [tex]F = 63 + 32[/tex]
    [tex]F = 95[/tex]
    Hence, the temperature is 95° F. Therefore, option (A) is correct.

  3. Convert 19° Celsius to Fahrenheit:
    [tex]F = \frac{9}{5} \times 19 + 32[/tex]
    [tex]F = 34.2 + 32[/tex]
    [tex]F \approx 66.2[/tex]
    Approximately, the temperature is 66° F. Therefore, option (D) is correct.

  4. Convert 41° Celsius to Fahrenheit:
    [tex]F = \frac{9}{5} \times 41 + 32[/tex]
    [tex]F = 73.8 + 32[/tex]
    [tex]F \approx 105.8[/tex]
    Approximately, the temperature is 106° F. Therefore, option (C) is correct.

By applying the appropriate conversion formula, we can accurately determine the temperature in Fahrenheit for each given Celsius temperature.