Question

calcule o valor de X
a) 30% de X= 24

B) 25% de X =12

c) 180% de X = 540

d) 13% de X =2184

me ajudem pfvr​

Answer 1

Resposta:

a) 30% => 30/100, logo 30/100.X= 24

30X= 24.100 => 30x = 2400 => x= 2400/30 => X=80

Testando: 30/100= 0,3 => 80.(0,3)= 24

b) 25% => 25/100, logo 25/100.X = 12

25X= 12.100 => 25X= 1200 => X= 1200/25 => X= 48

Testando: 25/100= 0,25 => 48.(0,25)= 12

c) 180% => 180/100, logo 180/100X = 540 => 180X=540.100 => 180X = 54000 => X= 54000/180 => X= 300

Testando: 180/100= 1,8 => 300.(1,8) = 540

d) 13% => 13/100, logo 13/100.X = 2184 => 13X = 2184.100 => 13X = 218400 => X = 218400/13 => X = 16800

Testando: 13/100= 0,13 => 16800.(0,13)= 2184

Boa Sorte