Question

Calcule x nas proporções abaixo: a)x/3=5/15 b) 1/x=2/6 c) 0,1/3= x/9 d) 3-x/1+x= 4/2 e) x+1 /20= x/16

Answer 1

a) x = 1/9
b) x = 3
c) x = 3/10
d) x = 1/3
e) x = 4