Question

Aflati numerele naturale x, y si z stiind ca sunt direct proportionale cu 2, 3 si 5 iar produsul lor este 810 DAU 28 DE PUNCTE SI COROANA IE URGENT !!!

Answer 1

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

x=2k

y=3k

z=5k

x*y*z=2k_3k)5k=30k³

30k³=810

3k³=81

k³=27=3³

k=3

a=2*3=6

b=3*3=9

c=5*3=15

verificare

6*9*15=6*15*9=90*9=810,. adevarat , bine rezolvat\as simple as that!!