Question

Determinați nr naturale x ce verifica inecuatiile :
A)x+1,25<7,05
B)x:2,5<1,2
C)3,4•x < sau egal cu 9,8

Answer 1

a, x<7,05-1,25
x<5,8, x∈{0,1,2,3,4,5}
b. x:2,5<1,2
x<1,2x2,5
x<3, x∈{0,1,2}
c. 3,4x≤9,8
x≤9,8:3,4
x≤2,88 x∈{0,1,2}