✨ Best Answer ✨
30cm＝0.3m＝0.0003km
72秒＝72/60分＝72/3600時＝1/50時
0.0003÷(1/50)＝0.015
0.015km/h
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✨ Best Answer ✨
30cm＝0.3m＝0.0003km
72秒＝72/60分＝72/3600時＝1/50時
0.0003÷(1/50)＝0.015
0.015km/h
Users viewing this question
are also looking at these questions 😉
ありがとうございます！！！