Question

URGENT VA ROG!!!
IMI TREBUIE IN MAXIN O ORA!!
DAU COROANA!!


Imi trebuie toata fisa!​

Answer 1

1. c) 20

2. b) 5

3. d) 0,6

4. c) 5 cm

III.

- a) 3×3a = 2×5b

9a = 10b

10b = 9a

b = 9a/10

b/a = 9/10

b/a = 0,9

- b) 3,2% = 3,2/100= (32/10)/100 = 32/1000= 4/125

- c) a/2 = 5/4 => a = 2×5/4 = 10/4

100×a = 100×10/4 = 25×10 = 250

-d) 2 - ay/bx = 2 - bx/bx = 2 - 1 = 1