Question

geeeeeenteeeee me ajudemmmm pfv eu imploro do 33 pontos pfv presiso das continha

a) 38 + [7 x (6 + 3) – (17 x 3)] =
b)3 x [5 + (42÷3 – 9)] =
c)120÷ [3 x 15 +(2 x 7 + 1) =
d) [16 + (2 +(5 x 3) – (21 :7 +10) =

Answer 1

Resposta:

a)50

b)30

c)2

d)20

Explicação passo-a-passo:

a) 38 + [ 7 x (6 + 3) - (17 x 3) ]

38 + [ 7 x 9 - 51 ]

38 + 12

50

b) 3 x [ 5 + (42 ÷ 3 – 9) ]

3 x [ 5 + (14 - 9) ]

3 x [ 5 + 5 ]

3 x 10

30

c) 120 ÷ [ 3 x 15 + (2 x 7 + 1) ]

120 ÷ [ 3 x 15 + (14 + 1) ]

120 ÷ [ 3 x 15 + 15 ]

120 ÷ [ 45 + 15 ]

120 ÷ 60

2

d) [ 16 + (2 + (5 x 3) – (21 ÷ 7 + 10) ]

[ 16 + (2 + 15) - (3 + 10) ]

16 + 17 - 13

33 - 13

20

Answer 2

Resposta:

A)38+(7x(6+3)-(17x3)

38+(7x9-51)

38+(63-51)

38+12

=50

B)3x[5+(42÷3-9)

3x(5+(14-9)

3x[5+5]

3x10

=30

C)120÷[3x15+(2x7+1)]

120÷[3x15+15

120÷[45+15

120÷60

=2

D)(16+(2+(5x3)-(21÷7+10

[16+(2+15)-(3+10)]

[16+17-13]

[33-13)

=20

Explicação passo-a-passo: