Question

1)Daca {x,y,z} sunt direct proportionale cu {2,3,4} iar x+y+z=180 calculati cele trei numere.
Va rog o am pe maine!!!!!!!!!!!!

Answer 1

x,y,z  dp cu 2,3,4

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

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

x+y+z=180
2k+3k+4k=180
9k=180
k=20

x=2*20=40
y=3*20=60
z=4*20=80

Answer 2

{x,y,z} D.P {2,3,4}
$=> \frac{x+y+z}{2+3+4} = \frac{180}{9} =20$
$\frac{x}{2}=20 => x= 40$
$\frac{y}{3}=20 => y=60$
$\frac{z}{4}=20 => z=80$