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23-03-2020
Mathematics

contestada

Poproszę sam wynik bez obliczeń. Średnia arytmetyczna zestawu 10 , 12 ,12 , X , 18 , 20 wynosi 14,5. Jaką liczbą jest X ?

Respuesta :

LOLWUTwaw LOLWUTwaw

27-03-2020

Answer:

x = 15

Step-by-step explanation:

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