Question

Pls heeelp!! Coroana!!! Aflati trei numere zecimale,stiind ca doua cate doua au mediile aritmetice 4,(7) ; 8,(6) si 3,(2). Mersiii!!! :) :)

Answer 1

a+b=4,(7).2=$\frac{86}{9}$
b+c=8,(6).2=$\frac{156}{9}$
a+c=$3,(2).2= \frac{58}{9}$
Adunam relatiile si obtinem dupa impartirea cu 2 :
a+b+c=$\frac{150}9}$
de unde a=$\frac{150}9}- \frac{156}{9} = \frac{-6}{9}$
b=$\frac{150}{9}- \frac{58}{9} = \frac{92}{9}$
c=$\frac{150}{9} - \frac{86}{9}= \frac{64}{9}$
Daca esti clasa a 5-a atunci undeva este o greseala...Mai verifica textul...