Question

1. 90 km/jam = ... km/menit = ... m/detik
2. Ditempuh 120 km, 2 ½ Jam = ... km/jam = ... km/menit
3. 72 km / ... jam = 24 km / jam = ... m/menit
4. Kecepatan Bersepeda 12 km/jam = ... m/menit
5. Jarak ... km . Waktu Yg DiTempuh 1jam20menit = 75 km/jam = ... m/menit

plz bantu jawab
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Answer 1

1. 90km/60menit=1,5km/menit=9000m/3600detik=2,5m/detik
2. j=120 km×1000=120.000m
w=2 1/2 jam=02.30=150 menit
k=j/w
=120.000m/150menit=800m/menit
3. 72÷24=72km/3jam=72.000m/180menit=4000m/menit
4. 12.000m/60menit=20m/menit
5. w=1 jam 20 menit
k=75 km/jam=75.000m/60=1250m/menit
j=k×w=75km/jam × 1 20/60
=75km/jam×1 1/3
=75×4/3
=300/3=100km