Question

Numerele naturale x,y,z sunt direct proportionale cu 0,1; 0,2; 0,3; iar 3x+2y+5z=110. Aflati x,y si z. Repedeeeee!!!!

Answer 1

{x, y, z} d.p { 0.1 0.2 0.3} X/0.1=y/0.2=z/0.3=k X=0.1k Y=0.2k Z=0.3k (3x0.1k)+(2×0.2)+(5×0.3k)=110 0.3k+0.4k+0.15k=110 22k=110 K=110÷22 K=5 X=5×0.1=0.5 Y=1 Z=1.5