Question

media aritmetrica dintre un nr.necunoscut si 9,25 este egala cu 7,35.Determinati nr respectiv

Answer 1

   
[tex]\displaystyle \\ m_a = \frac{x+ 9,25}{2} = 7,35 \\ \\ \frac{x+ 9,25}{2} = 7,35 \\ \\ x+ 9,25 = 7,35 \times 2 \\ \\ x+ 9,25 = 14,7 \\ \\ x = 14,7 - 9,25 = \boxed{5,45 }[/tex]

Answer 2

(a+9,25):2=7,35. a+9,25=7,35×2. a+9,25=14,7. a=14,7-9,25. a=5,45. v:(5,45+9,25):2=7,35