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Rosineteg824go
Respondido

a) 50% de 10
b)30% de 50
c)70% de 40
d)80% de 70
e)60% de 40
f)25% de 80
g)40% de 1280
h)5% de 372
i)150% de 60
j)8% de 375 ​

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Resposta :

Dry2405go
a)5
b)15
c)28
d)56
e)24
f)20
g)512
h)18,6
i)90
j)30
Paulobarrosnaturago

Resposta:

Explicação passo a passo:

1)

A) 50% . 10

= 50/100 . 10

= '5/"10 . 10'

= "5"

_____________

b) 30% . 50

= 30/100 . 50

= 3/10 . 50

= 50/1 . 3

= "15"

____________

c) 70% . 40

= 70/100 . 40

= 7/10 . 40

= 7.4

= "28"

___________

d) 80% . 70

= 80/100 . 70

= 8/10 . 70

= 8.7

= "56"

____________

e) 60% . 40

= 60/100 . 40

= 6/10 . 40

= 6.4

= "24"

____________

f) 25% . 80

= 25/100. 80

= 1/4. 80

= "20"

____________

g) 40% . 1280

= 40/100 . 1280

= 4/10 . 1280

= 4.128

= "512"

______________

h) 5% . 372

= 5/100 . 372

= 1/20 . 372

= 372/20 . '(:2)/(:2)'

= 186/1'

= "18,6"

____________

i) 150% . 60

= 150/100 . 60

= 15/10 . 60

= 15.6

= "90"

_______________

j) 8% . 375

8/100 (:4)/(:) . 375

= 2/25 . 375

= 375/25. 2

= 15.2

= "30"

_________

2)

a) 8% = 8/100= "0,08"

b) 57% = 57/100= "0,57"

c) 73% = 73/100= "0,735"

d) 61% = 61/100 = "0,61"

e) 235% = 235/100 ="2,35"

f) 125% = 125/100 = "1,25 "

g) 200% = 200/100 = "2"

h) 55% = 55/100 = "0,55"

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