Question

{URGENTE} ME AJUDEM PF
Encontre o valor do x
e) 2/3=12/x
f) 3/8=x/40
g) x/20=2/5
h) 100/x=20/50
i) 4/x=1/4
J) x/37=403/481

Answer 1

Vamos lá!!!

Resolução: multiplique cruzado.

e) 2/3=12/x

2x = 36

x = 36/2

x = 18

2/3 = 12/18

f) 3/8=x/40

8x = 120

x = 120/8

x = 15

3/8 = 15/40

g) x/20=2/5

5x = 40

x = 40/5

x = 8

8/20 = 2/5

h) 100/x = 20/50

100/x = 2/5

2x = 500

x = 500/2

x = 250

100/250=20/50

i) 4/x = 1/4

x = 16

4/16 = 1/4

j) x/37 = 403/481

x/37 = 31/37

x = 31

31/37 = 403/481

Espero ter ajudado.