Question

AJUTATI.MA VA ROG D.AU COROANA​

Answer 1

Răspuns:

7) 20529

8) 7957

10) 45, 135

11) 9

Explicație pas cu pas:

7) r = 78, I = 1203, C = 17, D = ?

D = I * C + r = 1203 * 17 + 78 = 20529

8) r = 19, I = 126, C = I/2, D =?

D = I * C + r = 126 * 126/2 + 19 = 126 * 63 + 19 = 7957

9) a) 1234 : 3 = 411, r = 1

   b) 112 : 5 = 22, r = 2

   c) 1209 : 4 = 302, r = 1

   d) 125 : 11 = 11, r = 4

   e) 1225 : 15 = 81, r = 10

    f) 4265 : 25 = 170 , r = 15

   g) 1002 : 33 = 30 , r = 12

10) a + b = 180

b = 3a => a + 3a = 180 => 4a = 180 => a = 45

b = 3 * 45 = 135

11) (((x - 8) * 7 + 6 - 5) - 4) * 3 - 2 = 10

((7x - 56 + 1) - 4) * 3 = 12

7x - 55 - 4 = 4

7x = 63

x = 9

Answer 2

Răspuns:

Explicație pas cu pas:

7.

D : 1203 = 17 rest 78

D = 1203*17 + 78 = 20451 + 78 = 20529

__________

8.

C = 126 : 2 = 63

D : 126 = 63 rest 19

D = 126*63 + 19 = 7938 + 19 = 7957

______________

9.

1234 : 3 = 411,(3)

112 : 5 = 22,4

1209 : 4 = 302,25

125 : 11 = 11,(36)

1225 : 15 = 81,(6)

4265 : 25 = 170,6

1002 : 33 = 30,(36)

_____________

10.

A + B = 180

A = 3B

3B + B = 180

4B = 180

B = 180 : 4 = 45

A = 180 - 45 = 135

____________

11.

{[(x - 8) *7 + 1] - 4 }*3 = 10 + 2 = 12

[(x - 8) *7 + 1] - 4 = 12 : 3 = 4

(x - 8) *7 + 1 = 4 + 4 = 8

(x - 8) *7 = 8 - 1 = 7

x - 8 = 7 : 7 = 1

x = 1 + 8 = 9