tolong donk kak pentinh nih pliessssss kak pliessssssssss tolong

1. 145 - 55 = 90 m3 = 90 × 1000 = 90.000 dm3/liter
V ÷ W = 90.000 ÷ 30 = 3.000 liter/menit

2. 720 ÷ 6 = 120 menit ÷ 60 = 2 jam

3. 2 1/2 j = 150 menit
6.000 ÷ 150 = 40 cm3/menit

4. 2/3 × 300 = 200 cm3/menit
200 cm3 = 200 ÷ 1000 = 0,2 dm3 / liter
1 menit = 1/60 jam
0,2 × 60 = 12 liter/jam

5. Debit =V ÷ W
Debit = 40 ÷ 4
Debit = 10 liter/menit