Question

Calcule as porcentagens correspondentes:

e) 2% de 700 laranjas

f) 40% de 48 m

g) 38% de 200 Kg

h) 6% de 50 telhas

i) 37,6% de 200

j) 22,5% de 60

Answer 1

Explicação passo-a-passo:

e)

100% ———— 700 laranjas

2% —————- x

100x = 2.700

100x = 1400

x = 1400/100

x = 14 laranjas

f)

100% ————— 48 m

40% —————- x

100x = 40.48

100x = 1920

x = 1920/100

x = 19,20 m

g)

100% ————— 200 kg

38% —————— x

100x = 38.200

100x = 7600

x = 7600/100

x = 76 kg

h)

100% ————— 50 telhas

6% ——————- x

100x = 6.50

100x = 300

x = 300/100

x = 3 telhas

i)

100% ————— 200

37,6% ————— x

100x = 37,6.200

100x = 7520

x = 7520/100

x = 75,20

j)

100% ————— 60

22,5% ————— x

100x = 22,5.60

100x = 1350

x = 1350/100

x = 13,50

Answer 2

E) $\sf 2\% \: \: = \: \: 0.02 \\\sf 0.02 \: ⠂700 = \red {14}$

= 14 Laranjas.

.

F)$\sf 40\% \: \: = \: \: 0.40 \\\sf 0.40 \:⠂48 = \red {19.2}$

= 19.2 M

.

G) $\sf 38\% \: \: = \: \: 0.38 \\\sf 0.38 \:⠂200 = \red {76}$

= 76 Kg

.

H) $\sf 6\% \: \: = \: \: 0.06 \\\sf 0.06 \: ⠂50 = \red {3}$

= 3 Telhas.

.

I)$\sf 37.5\% \: \: = \: \: 0.37,5 \\\sf 0.37,5 \: ⠂200 = \red {75}$

.

J) $\sf 22.5\% \: \: = \: \: 0.22,5 \\\sf 0.25,5 \: ⠂60 = \red {13.5}$