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calculati media aritimetica a numerelor
a 45


Răspuns :

Ma1=(45*3/8+12*1/4)/2=(135/8+12/4)/2=(135+24)/16=159/16....ma2=(7/15+12*1/5)/2=(7/15+12/5)/30=(7+36)/2=43/30.cel Putin asta am inteles eu.sper ca te.am ajutat!