Question

Ex 3.4.Pls dau Coronita

Answer 1

3. REZOLVATI ECUATIILE:

a) x ·3,2 = 17, 28
x = 17,28 ÷3,2 
x = 5,4
5.4 · 3,2 = 17,28

b) x · 2,16 = 13, 392 
x = 13, 392 ÷ 2, 16
x = 6,2
6,2 ·2,16 = 13, 392

c) 5,6 · x = 39, 2
x = 39,2 ÷ 5,6
x = 7

d) 4,215 · x = 5,058
x = 5,058 ÷ 4, 215
x = 1,24

e) x · 4,5 = 9
x = 9 ÷ 4,5 
x = 2

f) 10,3 · x = 573, 71 
x = 573, 71 ÷ 10, 3
x = 55,7

g) x · 0,8 = 10, 32
x = 10,32 ÷ 0,8
x = 12, 9

h) 9, 87 · x = 20, 727 
x = 20,727 ÷ 9,87
x = 2,1

4. REZOLVATI ECUATIILE:

a) x ÷ 2,9 = 3,5
x = 3,5 × 2,9
x = 10,15

b) x : 0,43 = 15
x = 15 × 0, 43
x = 6, 45

c) 20 : x = 6,4
x = 20 : 6,4
x = 3, 125

d) 4,215 : x = 5,058
x = 5, 058 : 4,215 
x = 1,2

e) x : 7,5 = 6,1
x = 7,5 × 6,1
x = 45, 75

f) x : 6 = 3, 65
x = 6 × 3, 65
x = 21,9

g) 4, 98 : x = 4,15
x = 4, 98 : 4,15
x = 1,2

h) 54 : x = 12
x = 54 : 12
x = 4,5

Succes si spor la scris! Coroana?