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Media aritmetica a doua numere:3,24 si x este 4,26.determinati x

Răspuns :

(3,24+x):2=4,26
3,24+x=4,26·2
3,24+x=8,52
x=8,52-3,24
x=5,28.
(3,24+x) impartit la 2 = 4,26
3,24+x=4,26 ori 2
3,24+x=8,52
x=8,52-3,24
x=5,28
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