Question

Atividade é sobre porcentagem​

Answer 1

Resposta:

A -

$\frac{4}{5} = \frac{x}{100}$

$5x = 400$

$x = \frac{400}{5} = 80\%$

B -

$\frac{1}{2} = \frac{x}{100}$

$2x = 100$

$x = \frac{100}{2} = 50\%$

C -

$\frac{7}{10} = \frac{x}{100}$

$10x = 700$

$x = \frac{700}{10} = 70\%$

D -

$\frac{13}{20} = \frac{x}{100}$

$20x = 1300$

$x = \frac{1300}{20} = 65\%$

F -

$\frac{43}{50} = \frac{x}{100}$

$50x = 4300$

$x = \frac{4300}{50} = 85\%$

G -

$\frac{24}{120} = \frac{x}{100}$

$120x = 2400$

$x = \frac{2400}{120} = 20\%$

H -

$\frac{46}{200} = \frac{x}{100}$

$200x = 4600$

$x = \frac{4600}{200} = 26\%$

I -

$\frac{1}{4} = \frac{x}{100}$

$4x = 100$

$x = \frac{100}{4} = 25\%$

J -

$\frac{5}{4} = \frac{x}{100}$

$4x = 500$

$x = \frac{500}{4} = 125\%$

K -

$\frac{8}{5} = \frac{x}{100}$

$5x = 800$

$x = \frac{800}{5} = 140\%$

L -

$\frac{9}{150} = \frac{x}{100}$

$150x = 900$

$x = \frac{900}{150} = 6\%$