Question

como responder isso ??

Answer 1

a)
8/5 = x/8
5x = 8.8
x = 64/5
x = 12,8

b)
8/x = x/2
x² = 8.2
x = √16
x = 4

c)
(x+6)/x = 6/1
x + 6 = 6x
6x - x = 6
5x = 6
x = 6/5

d)
2,4/1,6 = 2,7/x
2,4x = 2,7 . 1,6
x = 4,32/2,4
x = 1,8

=)