tolong di jawab dan isi caranya..

1. • °F ke °C = 5/9 × (n - 32)
= 5/9 × (50 - 32)
= 5/9 × 18
= 5 × 2
= 10°C
• °F ke °R = 4/9 × (n-32)
= 4/9 × (50-32)
= 4/9 × 18
= 4 × 2
= 8 °R

2. • °C ke °F = 9/5 × n + 32
= 9/5 × 40+32
= 9 × 8 + 32
= 72 + 32 = 104°F
• °C ke °R = 4/5 × n
= 4/5 × 40
= 4 × 8
= 32 °R

3. • °R ke ° C = 5/4 × n
= 5/4 × 4
= 5 °C
• ° R ke ° F = 9/4 × n + 32
= 9/4 × 4 + 32
= 9 + 32
= 41 °F

4. Perbandingan senilai
40 km = 3 liter
200 km = x

Kalikan silang
40 × x = 200 × 3
40x = 600
x = 600/40
x = 15 liter

Nomor 5 maaf ya aku lupa caranya...