6. Convert: 25 °C to °F and 86 °F to °C

1.	6. Convert: 25 °C to °F and 86 °F to °C
Answer» ONG>Answer: (i) 25° C = 77° F (ii) 86° F = 30° C Explanation: ° F = 9/5 × °C + 32 (i) °C = 25 ° F = 9/5 × 25 + 32 = 45 + 32 = 77° F (ii) ° F = 86 86° = 9/5 × °C + 32 (86 - 32) × 5/9 = ° C 54 × 5/9 = ° C 6 × 5 = 30°

Answer» ONG>Answer:

(i) 25° C = 77° F

(ii) 86° F = 30° C

Explanation:

° F = 9/5 × °C + 32

(i) °C = 25

° F = 9/5 × 25 + 32 = 45 + 32 = 77° F

(ii) ° F = 86

86° = 9/5 × °C + 32

(86 - 32) × 5/9 = ° C

54 × 5/9 = ° C

6 × 5 = 30°

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