First 100cm equals 1m, so divide your subject value (30cm) by 100 which is 0.3m.
now 1000 metres equals 1 kilometer so you divide 0.3 metres by 1000 which equals
0.0003 kilometres
Answer: 0.0003 kilometres
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There are 300 kilometers in 30 000 000 centimeters.
Always change the phrase into English : ie: 0.5 kilometers corresponds to how many inches first change kilometers to something you know like cm ( something abit simpler than kilometers) 0.5 kilometers make 50,000 cm now convert 50,000 cm to inches, the converstion factor between cm and inches is: 1 cm is approximetly 0.3937 inches so 50,000 cm is 19685 inches Final answer: 0.5 km is 19,685 inches
26 cm/s (1 meter/100 cm)(1 kl/1000 meters)(3600 seconds/1 hour) = 0.94 kilometers per hour ===================
(40 kilometers) x (1000 meters/kilometer) x (100 cm/meter) = 4,000,000 cm