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Converting the Temperature from Celsius to Fahrenheit
In converting the temperature from Celsius to Fahrenheit the formula is F = (9/5)C + 32.
Steps of converting from Celsius (°C) to Fahrenheit (°F)
Step I: Multiply the number of degree by 9.
Step II: Divide the product by 5.
Step III: Add 32 to the result.
For Example:
1. Convert 40 °C to the Fahrenheit scale.
Solution:
Step I: Multiply the number of degree by 9.
= 40° × 9
= 360°
Step II: Divide the product by 5.
= 360° ÷ 5
= 72°
Step III: Add 32 to the result.
= 72 + 32
= 104° F
Therefore, 40° C = 104° F
2. Convert 30°C to the Fahrenheit scale.
Solution:
Step I: Multiply the number of degree by 9.
= 30° × 9
= 270°
Step II: Divide the product by 5.
= 270° ÷ 5
= 54°
Step III: Add 32 to the result.
= 54 + 32
= 86° F
Therefore, 30° C = 86° F
3. Convert 75°C to the Fahrenheit scale.
Solution:
Step I: Multiply the number of degree by 9.
= 75° × 9
= 675°
Step II: Divide the product by 5.
= 675° ÷ 5
= 135°
Step III: Add 32 to the result.
= 135 + 32
= 167° F
Therefore, 75° C = 167° F
4. Convert 20°C to the Fahrenheit scale.
Solution:
Step I: Multiply the number of degree by 9.
= 20° × 9
= 180°
Step II: Divide the product by 5.
= 180° ÷ 5
= 36°
Step III: Add 32 to the result.
= 36 + 32
= 68° F
Therefore, 20° C = 68° F
5. Convert the following Celsius into Fahrenheit.
(i) 80° C
(ii) 40° C
Solution:
(i) 80° C
We know that F = (C × \(\frac{9}{5}\)) + 32
F = (80 × \(\frac{9}{5}\)) + 32
F = (\(\frac{80 × 9}{5}\)) + 32
F = (16 × 9) + 32
F = 144 + 32
F = 176° F
Hence, 80° C = 176° F
(ii) 40° C
We know that F = (C × \(\frac{9}{5}\)) + 32
F = (40 × \(\frac{9}{5}\)) + 32
F = (\(\frac{40 × 9}{5}\)) + 32
F = (8 × 9) + 32
F = 72 + 32
F = 104° F
Hence, 40° C = 104° F.
Worksheet on Converting the Temperature from Celsius to Fahrenheit
I. Convert the following into Fahrenheit scale.
1. 70°C
2. 85°C
3. 25°C
4. 55°C
5. 95°C
6. 45°C
7. 100°C
8. 53°C
9. 90°C
10. 37°C
11. 5°C
12. 75°C
13. 30°C
14. 65°C
15. 90°C
16. 80°C
17. 20°C
18. 92°C
19. 14°C
20. 23°C
21. 10°C
22. 40°C
23. 36°C
24. 70°C
Answer:
I. 1. 158° F
2. 185° F
3. 77° F
4. 131° F
5. 203° F
6. 113° F
7. 212° F
8. 127.4° F
9. 194° F
10. 98.6° F
11. 41° F
12. 167° F
13. 86° F
14. 149° F
15. 194° F
16. 176° F
17. 68° F
18. 197.6° F
19. 57.2° F
20. 73.4° F
21. 50° F
22. 104° F
23. 96.8° F
24. 158° F
Converting the Temperature from Celsius to Fahrenheit.
Converting the Temperature from Fahrenheit to Celsius.
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