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Andreeiuza2
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Determinați numerele naturale x care verifică inecuatiile :
a) x+2,75<8,03
b)x-0,25≤3,75
c)2x≤13,75
d)3,7x<8,7
e)x:2,3<1,5
f)3,75-x≥1

Răspuns :

Axu350
A) x+2,75<8,03/-2,75
x<5,31
X€{0,1,2,3,4,5}
B)x-0,25 <3,75/+0,25
X<4,0
X€{0,1,2,3}
C)2x_<13,75/+2
X<13,79
X€{0,1,2,3,4,......,13}
D)3,7x<8,7/+3,7
X<12,4
X€{0,1,2....,12}
E)X:2,3<1,5/×2,3
X<3,8
X€{0,1,2,3}
F)3,75-x>1/+3,75
X>3,76
X€{4,5,6,7,8,9.......}infinit
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