Question

Sendo a // b // c, calcule o valor de x e y

Answer 1

a) x + y = 14

x/y = 4/3

x = 4y/3

(4y/3) + y = 14

4y + 3y = 42

7y = 42

y = 6

x = 8

b) x + y = 21

x/y = 10/4

x = 10y/4

(10y/4) + y = 21

10y + 4y = 84

14y = 84

y = 6

x = 15

c) 8/y = 12/6
y = 4
Sendo y/x = 3 e y = 4
x = 4/3

d) 2/x = 3/4
3x = 8
x = 8/3

x/y = 4/5 como x = 8/3

4y = 40/3
y = 10/3