Question

me ajudem pfv!

3)Calcule as porcentagens:

a)20% de 240 d)12% de 400

b)32% de 300 e)15% de 500

c)8% de 200 f)13% de 1200​

Answer 1

Olá.

a) 20% de 240 =

20/100 × x/240

100x = 20 × 240

100x = 4800

x = 4800 ÷ 100

x = 48

b) 32% de 300 =

32/100 × x/300

100x = 32 × 300

100x = 9600

x = 9600 ÷ 100

x = 96

c) 8% de 200

8/100 × x/200

100x = 8 × 200

100x = 1600

x = 1600 ÷ 100

x = 16

d) 12% de 400

12/100 × x/400

100x = 12 × 400

100x =4800

x = 4800 ÷ 100

x = 48

e) 15% de 500

15/100 × x/500

100x = 15 × 500

100x = 7500

x = 7500 ÷ 100

x = 75

f) 13% de 1200

13/100 × x/1200

100x = 13 × 1200

100x = 15600

x = 15600 ÷ 100

x = 156

>>espero ter ajudado

>>Bons estudos!

Att: SoldadoSccp10