Question

A = 44 : (3 – 5) – (–15 : 3)
B = 24 : (–4 – 2) – (21 : 3)
Calcule B – A, na forma simplificada.
(A) –26
(B) –6
(C) 6
(D) –20

Answer 1

Resposta:

Olá bom dia!

A = 44 : (3 – 5) – (–15 : 3)

A = 44 : (-2) - (-5)

A = -22 - (-5)

A = -22 + 5

A = -17

B = 24 : (–4 – 2) – (21 : 3)

B = 24 : (-6) - (7)

B = -4 - 7

B = -11

B - A =

B - A = -17 - (-11)

B - A = -17 + 11

B - A = -6

Alternativa (B) –6.