Răspunsuri

2014-05-21T21:09:36+03:00
0,5=5/10=1/2
0,2=2/10=1/5
0,(3)=3/9=1/3

x,y,z  ip cu 1/2; 1/5, 1/3 

x* 1/2= y* 1/5 =z* 1/3 =k
x/2=y/5=z/3=k
x=2k
y=5k
z=3k

4k+15k-12k=210
7k=210
k=30

x=60
y=150
z=90
1 5 1