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student3451

rates

two,three,four how to do?

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  • student3451
    2019-04-03 23:18:40
    please,please,please,who can help me?
  • tayh
    2019-04-04 00:19:41
    2. 1 km = 1000 m , 1 hour = 60x60 secs, B 8 km/h = (8x1000)m/(60x60)sec
  • tayh
    2019-04-04 00:21:15
    3. 1 kg=1000 g, 1 m^2 = 100x100 cm^2; 3 kg / m^2 = (3 x1000)g/ (100x100) cm^2
  • tayh
    2019-04-04 00:22:47
    4. 1 kg = 1000 g; 1 ha = 10000 m^2; 350 kg / ha = (350x1000)g/10000 m^2
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