Journey

Charles and Eva stands in front of his house, Charles went to school south at speed 5.4 km/h, Eva went to the store on a bicycle eastwards at speed 21.6 km/h. How far apart they are after 10 minutes?

Result

x =  3.711 km

Solution:

x=(10/60) 5.42+21.62=3.711 kmx=(10/60) \cdot \ \sqrt{ 5.4^{ 2 }+21.6^{ 2 } }=3.711 \ \text{km}



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