Question

Srednee arifmeticheskoe dvux chisel 12.01, a odno iz nix ravno 18.43. Naydite drugoe chislo

Answer 1

x=18.43
y=?
(x+y)/2=12.01
(18.43+y)=24.02
y=24.02-18.43=5.59
проверка
(5.59+18.43)/2= 24.02.2=12.01
Ответ 5.59