Question

Determinati nr x,y,z direct proportionale cu nr 2,3,4 stiind
a) x+y+z=27
x,y,z d.p cu 2,3 si 4

Answer 1

{ x, y, z } -> d.p { 2, 3, 4 } => x/2 = y/3 =z/4

x + y + x = 27

=> (x + y + z) / (2 + 3 + 4) = 27/9 = 3

x/2 = 3 => x = 2 × 3 = 6

y/3 = 3 => y = 3 × 3 = 9

z/4 = 3 => z = 4 × 3 = 12