Question

Determine as proporções

A) x+8 6
___ =___
3 2


B) 8+5 ¾
_____ =
X



C) 9
_____ = ⅔
X + 1

Answer 1

Vamos lá.

a)

(x + 8)/3 = 6/2

x + 8 = 9

x = 1

b)

13/x = 3/4

3x = 52

x = 52/3

c)

9/(x + 1) = 2/3

(x + 1)/9 = 3/2

2x + 2 = 27

2x = 25

x = 25/2