Question

1000 < sau egal 5 x a < 1100. a = ?;​

Answer 1

Răspuns:

Explicație pas cu pas:

Answer 2

Răspuns:

$1000 \leqslant 5a < 1100$

$5a \geqslant 1000$

$5a < 1100$

$a \geqslant 200$

$a < 220$

$= > a \: € \: [200,220)$