pada malam hari suhu dikota A -4°F carilah suhu udara kota tersebut dlm celsius dan reamur

℃ = 5/9 (℉-32)
= 5/9 (-4-32)
= 5/9 (-36) = -180/9 = -20℃

˚R =4/9(℉-32)
=4/9(-4-32)
=4/9(-36)
=-144/9
=-16˚R


semoga benar

Tc=5/9(Tf-32)
5/9(-4-32)
5/9(-36)
Tc=20

TR=4/5(Tc)
4/5(20)
TR=16