Question

doar c imi trebuie va rog ajutati ma​

Answer 1

(x+y+z)/45 = 180/45 = 4

/ = supra

Answer 2

Răspuns:

x/2=y/3=z/4=k

2k+3k+4k=45

9k=45

k=45:9

k=5

x= 5•2=10

y= 5•3=15

z= 5•4=20