Question

4- Calcule:
a- 20% de 180=
b- 10% de 420=
c- 15% de 500=
d- 35% de 600=
e- 50% de 1000=
f- 25% de 1000=
g- 100% de 100=

Answer 1

Resposta:

a) 36

b) 42

c) 75

d) 210

e) 500

f) 250

g) 100

Explicação passo-a-passo:

Boa tarde,

Você fará regra de 3.

a- 20% de 180=

180 --- 100%

× --- 20

100×= 180•20

100×= 3600

×= 3600/100

× = 36

b- 10% de 420=

420 --- 100%

× --- 10%

100×= 420•10

100×= 4200

×= 4200/100

×= 42

c- 15% de 500=

500 --- 100%

× --- 15%

100×= 500•15

100×= 7500

×= 7500/100

×= 75

d- 35% de 600=

600 --- 100%

× --- 35%

100×= 600•35

100×= 21000

×= 21000/100

×= 210

e- 50% de 1000= basicamente a metade de 1000

1000 --- 100%

× --- 50%

100×= 1000•50

100×= 50000

×= 50000/100

×= 500

f- 25% de 1000= basicamente a metade da metade de 1000

1000 --- 100%

× --- 25%

100× = 1000•25

100× = 25000

× = 25000/100

× = 250

g- 100% de 100= valor total que no caso é 100

100 --- 100%

× --- 100%

100×= 100•100

100×= 10000

×= 10000/100

×= 100

Bons estudos ❤