Question

Aflati x din proportiile a) 5 supra x =10 supra 7 b) x supra 3 = 5 supra 9 c) 4 supra 21 = x supra 7

Answer 1

5/x =10/7  ;    x =5*7/10 =35/10 =7/2
x/3 =5/9  ;      x =3*5/9 =15/9 =5/3
4/21 =x/7  ;     x =4*7/21 =28/21 =4/3

Answer 2

sper ca te.am ajutat!