Question

testul 6 am nevoie de ajutor

Answer 1

1 ) 761 × 45 = 34245 rotunjit la ordinul sutelor --> 34200 ;

2 ) 6x + 3 - 1 = 32 => 6x + 2 = 32 => 6x =30 => x = 30 / 6 = 5

3 ) 5x + 1 ≤ 26 l - 1

  5x ≤ 25 l : 5

   x ≤ 5 => x ∈ { 5 , 4 , 3 , 2  , 1 , 0 } , x ∈ lN