Question

Questão 9: Calcule as porcentagens correspondentes. (2,0 PTS)
a) 2% de 700 laranjas
2%100 de 900=700: 100 = 7x2 = "pu
b) 40% de 48 m
40%100 de 48-48=48:100 = 0,4840 = 19,2
c) 38% de 200 Kg
38% 500 de 200=200:100=0,5x6 = 3kg
d) 6% de 50 telhas
6%.300 de 50-50:300 - 0,5x6 =3
e) 37,6% de 200
37.6% 1000 de 2000-2000:1000-2x 376= 752 = 75,2
f) 1% de R$350,00
g) 4% de R$35,00
h) 10% de 1400 eleitores
i) 15% de 1400 eleitores
j) 20% de 3450 litros de água
RCENTUAL SIMPLES​

Answer 1

a) $\frac{2}{100} . \frac{700}{1} =$   $\frac{1400}{100} = 14$

b) $\frac{40}{100} . \frac{48}{1} = \frac{1920}{100} = \frac{192}{10} = 19,2$

c) $\frac{38}{100} . \frac{200}{1} = \frac{7600}{100} = 76$

d) $\frac{6}{100} . \frac{50}{1} = \frac{300}{100} = 3$

e) $\frac{37,6}{100} . \frac{200}{1} = \frac{7.520}{100} = 75,2$

f) $\frac{1}{100} . \frac{350}{1} = \frac{350}{100} = 3,5$

g)$\frac{4}{100} . \frac{35}{1} = \frac{140}{100} = 1,4$

h) $\frac{10}{100} . \frac{1400}{1} = \frac{14000}{100} = 140$

i) $\frac{15}{100} . \frac{1400}{1} = \frac{21000}{100} = 210$

j) $\frac{20}{100} . \frac{3450}{1} = \frac{69000}{100} = 690$

Espero ter ajudado <3