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Gabi20000000
a fost răspuns

-1,5+[-0,58(3)+0,8(3)] :(-0,08(3) se obtine

Răspuns :

Răspuns

0,58(3) = (583-58)/900 = 525/900 = 7/12 ; 0,8(3) = (83-8)/90 = 5/6 ;

-1,5+[-0,58(3)+0,8(3)]:(-0,8(3)) =

-1,5+(5/6-7/12)x6/5 =

-1,5+[(10-7)/12]x6/5 =

-1,5+(3/12)x6/5 =

-3/2+18/60 =

3/10-3/2 =

(3-15)/10 =

-12/10 = -1,2


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