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ajutatima va rog la ex12

Ajutatima Va Rog La Ex12 class=

Răspuns :

Aejeong
a)x/3=5/1=>x=3•5/1=15

b)0,(3)/x=2/0,(2)
(1/3)/x=2/(2/9)
x=(1/3•2/9)/2=(2/27)/2=>
x=2/27•1/2=1/27

c)x/0,5=(1/2)/3
x/(1/2)=(1/2)/3=> x=(1/2•1/2)/3=1/4/3=1/4•1/3=1/12

d)(1/4)/2=(3/2)/x
x=(2•3/2)/(1/4)=3/1/1/4=>
x=3/1•4/1=12/1=12