Question

Dau coroana!Dati si explicatie pls
/=supra
Aflati x y si z daca
2x/3=3y/4=4y/5 si x+y+z=98
Urgentttt!​

Answer 1

2x/3=3y/4=4z/5= k

2x/3=k, 2x=3k, x=(3k)/2

3y/4=k, 3y=4k, y=(4k)/3

4z/5=k, 4z=5k, z=(5k)/4

x+y+z= 98

(3k)/2+(4k)/3+(5k)/4=98/*12

3k*6+4k*4+5k*3= 98*12

18k+16k+15k=98*12

49k=98*12/:49

k=2*12=24

x=(3k)/2=(3*24)/2=36

y=(4k)/3=(4*24)/3=32

z=98-(36+32)=98-68=30

Answer 2

Răspuns:

Explicație pas cu pas: