Question

I) na proporção x+1/20=x/16 valor do re
A8
B) 1/8. C)4. D)1/4​

Answer 1

x+1/20=x/16

20.x = 16(x+1)

20x = 16x +16

20x -16x = 16

4x = 16

x = 16/4

x = 4