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On the map of Europe made at 1: 4000000, Bratislava and Paris' distance is 28 cm. At what time an airplane flying 800 km/h will fly this journey?

Correct answer:

t =  1.4 h

Step-by-step explanation:

M=4000000 x1=28 cm m=28:100  m=0.28 m x2=x1 km=x1:1000  km=0.28:1000  km=0.00028 km v=800 km/h  s=M x2=4000000 0.0003=1120 km  s=vt  t=s/v=1120/800=1.4 h

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