Question

Determine o valor do x nas proporções.
Por favor me ajuda

(A) X/5=2/10=
(B) 3/4=9/x=
(C) 2/3/x=2/9=
(D)1/5/x=10/60=
(E) 3/4/6=1/2=

Answer 1

a) x/5=2/10= 1/5=2/10
b)3/4=9/x= 3/4=9/12
c)2/3/x=2/9= 2/3*1/3=2/9= 2/9=2/9
d)1/5/x=10/60= 1/5*50/60=10/60= 50/300=10/60
e)3/4/6=1/2= 3/4*4/6=1/2= 12/24=1/2