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Ex:43,44,45 e urgent​

Ex434445 E Urgent class=

Răspuns :

Răspuns:

43. a)5n-4=1 deci n=1

b)3n-5=1 deci n=2

44. a)x>y

b)x=y

c)x<y

45.a)10/100×1440=144

b)5/100×1440=144/2=72

c)30/100×1440=432

40/100×1440=576

15/100×1440=216