Question

b) Determinați câte numere naturale n verifica relatia
$2.4 \: < \frac{n}{10} < 5.7$
punct= virgula

Answer 1

[tex]\it 2,4\ \textless \ \dfrac{n}{10}\ \textless \ 5,7|_{\cdot10} \Rightarrow 24\ \textless \ n\ \textless \ 57 \Rightarrow n\in\{25,\ 26,\ 27,\ ..., \ 56\} \Rightarrow \\ \\ \\ \Rightarrow 56-24=32 \ de \ numere[/tex]