Question

Ajudem, por favorr
Calcule o valor de x nas proporções:
a) 2/x = 7/14
b) 4/20 = 6/x
c) 3/15 = x/5
d) x/10 = 6/5
e) 12/4 = x/2

Answer 1

a ) 28= 7x
28/7= X
4= x

b) 4x= 120
x=120/4
x= 30

c) 15= 15x
15/15=X
1= X

d) 5x=60
x= 60/5
x= 12

e) 24= 4x
24/4=x
6= x