Tolong dijawab beserta caranya

1. °C = 68 × 5/4 = 85°C
°F = (9/5 × 85) + 32 = 153 + 32 = 185°F

2. °R + °C = 135°
4/5 °C + °C = 135
9/5°C = 135°
°C = 75°
°R= 135° - °C = 135° - 75° = 60°

3. °C - °R = 42°
5/4 °R - °R = 42
9/4 °R = 42°
°R = 56/3° = 18 2/3°

4. °R + °C + °F = 320°
4/5 °C + °C + [(9/5 × °C) + 32] = 320°
9/5 °C + 9/5 °C + 32 = 320
18/5 °C = 288
°C = 80°C

°R = 4/5 × 80 = 64°R
°F = (9/5 × 80) + 32 = 144 + 32 = 176°F

5. suhu kota Q = 31°C × 4/5 = 124/5 °R = 24 4/5 °R