Question

calcule as proporções acima

Answer 1

Resposta:

a) 4.X = 2.8

4X = 16

X = 16/4

X = 4

b) 12X = 6.8

12X = 48

X = 48/12

X = 4

c) 7X = 14.5

7X = 70

X = 70/7

X = 10

d) 8X = 8.3

8X = 24

X = 24/8

X = 3

e) 10X = 2.5

10X = 10

X = 10/10

X = 1

f) 3X = 12.9

3X = 108

X = 108/3

X = 36

Espero ter ajudado!

Answer 2

Olá.

A) x/2 = 8/4

x/2 = 8/4

4x = 2 × 8

x = 16 ÷ 4

x = 4

B) 6/x = 12/8

6/x = 12/8

12x = 6 × 8

12x = 48

x = 48 ÷ 12

x = 4

C) 5/7 = x/14

5/7 = x/14

7x = 5 × 14

7x = 98

x = 98 ÷ 7

x = 14

D) 8/3 = 8/x

8x = 3 × 8

8x = 24

x = 24 ÷ 8

x = 3

E) x/5 = 2/10

x/5 = 2/10

10x = 5 × 2

10x = 10

x = 10 ÷ 10

x = 1

F) 3/9 = 12/x

3/9 = 12/x

3x = 9 × 12

3x = 108

x = 108 ÷ 3

x = 36

>>espero ter ajudado

>>Bons estudos!

Att: SoldadoSccp10