Question

11- Qual é o valor das expressões a seguir
12- calcule o valor das expressões a seguir
Me ajudem a responder essas questões por favor

Answer 1

11-
a)
9/2 : (1- 3/5 x 25/4)
9/2 : (1-3x 5/4)
9/2 : (1- 15/4)
9/2 : (-11/4)
-9/2 : 11/4
-9/2 x 4/11
-9x 2/11

-18
——
11

b)
(-6)(-9/25)(-9/5)
-6x 9/25 x 5/9
-6x 1/25 x5
-6x 1/5

-6
—-
5

c)
0,06:18
6/100 : 18/1
6/100 x 1/18
3/50 x 1/18
1/50 x 1/6

1
——-
300

d)
1
1+ —
8
—
3

3
1+—
8

11
—
8

12-
a)
1/4
————
-81/40

-10
——
81

b)
1/5-1/2x7/2
—————-
3/2

1/5-7/4
————
3/2

-31/20
———-
3/2

-31
——
30

c)
7/5
—————
1+3x 3/2

7/5
—————
1+ 9/2

7/5
—————
11/2

14
—-
55

d)
34/45
———-
13/15

34
—-
39