Un automobil pargurge distanta de 20 km in timpul 1pe patru

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Grade: Education Subject: matematica
Un automobil pargurge distanta de 20 km in timpul 1pe patru
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[tex]v=\frac{d}{t}\\ v=\frac{20km}{\frac{1}{4}h}\\ v=20*4\frac{km}{h}\\ v=80\frac{km}{h}[/tex]