Question

Suma a 3 numere naturale este 90.Aflati numerele,stiind ca sunt direct proportionale cu 5 12 13.Va rog repede!!!​

Answer 1

Răspuns:

A+B+C=90

{A,B,C}dp{5,12,13}=>A/5=B/12=C/13=>A+B+C/5+12+13=90/30=30

A/5=30=>A=5×30=150

B/12=30=>B=30×12=360

C/13=30=>C=13×30=390