👤
Avramiucmonica
a fost răspuns

media aritmetica a nr 135+ 140 +14 / 90  impartiti la 3    cum o rezolv pana aici am ajuns

Răspuns :

 [tex]Am \;inteles\;c\u{a}\;ai\;ajuns\;la\;forma:\\ m_a=\frac{135+140+\frac{14}{90}}{3}\;\; !\\ \frac{14^{(2}}{90}=7/45\;;\\ num\u{a}r\u{a}torul=^{45)}135+^{45)}140+^{1)}7/45=\\ =\frac{6075+6300+7}{45}=12382/45\;;\\ \Rightarrow\;m_a=\frac{12382}{45}\cdot\frac{1}{3}=12382/135=91,7(185) [/tex]

Alte intrebari