Question

ajutorrr + explicatie​

Answer 1

a) 40,41,42,43,44,45,46,47,48,49

Answer 2

Răspuns:

Bună

Explicație pas cu pas:

__

4a  = 4* 10+ 1* a= 40+ a

$\frac{3(40+ a)}{90} < \frac{173}{50}\\\\\frac{40+ a}{30} < \frac{173}{50}$

a= 0

$\frac{40}{30} < \frac{173}{50}$

a= 1

$\frac{41}{30} < \frac{173}{50}$

a= 2

$\frac{42}{30} < \frac{173}{50}$

a= 3

$\frac{43}{30} < \frac{173}{50}$

.

.

.

a= 9

$\frac{49}{30} < \frac{173}{50}$

$\frac{49}{30}= 1.6(3)$                          $\frac{173}{50}= 3.46$

a= 1, 2, 3, 4, 5, 6, 7, 8, 9

S= {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

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