Question

Calcule o valor das porcentagens:

Answer 1

Resposta:

a) 50

b)22,5

c)600

d)147,82

e)33

f)28,75

g)258,75

h)558

Exemplo do A)

200--------100

x--------------15

100x=2.250

x= 2.250

---------

100

x= 50

faça o resto das contas sozinho para ver se entendeu

Bons Estudos

Answer 2

Resposta:

$a)\frac{25}{100}\times200=2\times25=50$

$b)\frac{15}{100} \times150=\frac{3}{20} \times150=\frac{3}{2} \times15=\frac{45}{2}=22,5$

$c)\frac{50}{100} \times1200=50\times12=600$

$d)\frac{38}{100} \times389=\frac{19}{50} \times389=\frac{7391}{50} =147,82$

$e)\frac{12}{100} \times275=\frac{3}{25} \times275=3\times11=33$

$f)\frac{11,5}{100} \times250=0,115\times250=28,75$

$g)\frac{75}{100} \times345=\frac{3}{4} \times345=\frac{1035}{4} =258,75$

$h)\frac{124}{100} \times450=\frac{31}{25} \times450=31\times18=558$