Question

Impartiti numarul 90 in parti invers proportionale cu 2, cu 3 si cu 6
URGENT !!! 40 DE PUNCTE

Answer 1

a/1/2=b/1/3=c/1/6=90/1/2+1/3+1/6=90/1=90
a=90/2=45
b=90/3=30
c=90/6=15

Answer 2

$(x;y;z)\;i.p\;(2;3;6)\;\;inseamna ca\;\;2x=3y=6z=...k\;\\ adica\;x=k/2\;si\;y=k/3\;si\;z=k/6 \;inlocuim\;\;x+y+z=k/2+k/3+k/6=90\\ inseamna\;ca:\;3k/6+2k/6+k/6=6*90\\ deci\;k=540:6=90\\ x=90/2=45\;;\;y=90:3=30\;si\;z=90:6=15$