Question

suma a patru numere este $\frac{120}{49}$ . Calculati media aritmetica a acestora.
Multumesc!

Answer 1

$\frac{30}{49}$

Answer 2

Ma=$\frac{ a_{1}+ a_{2}+...+ a_{n} }{n}$

$\frac{ \frac{120}{49} }{4}= \frac{120}{49}* \frac{1}{4}(simplcu 4)= \frac{30}{49}* \frac{1}{1} = \frac{30}{49}$