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

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

Answer 2

(18,43+х):2= 12,01
18,43+х= 12,01*2
18,43+х=24,02
Х= 24,02-18,43
х= 5,59
-----------
(18,43+5,59):2=12,01
24,02:2= 12,01
12,01= 12,01

Comments

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