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Mathematics, 23.03.2020 19:43 wgdelgado
Poproszę sam wynik bez obliczeń. Średnia arytmetyczna zestawu 10 , 12 ,12 , X , 18 , 20 wynosi 14,5. Jaką liczbą jest X ?
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Poproszę sam wynik bez obliczeń. Średnia arytmetyczna zestawu 10 , 12 ,12 , X , 18 , 20 wynosi 14,5....
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