Question

Resolva Todas as Questoes e ganhe 40 PONTOOS !

Answer 1

a)50%
b)7
c)180
d)48
e)400
f)1/4,0.25,25%
g)4/10 = 2/5,40%

Answer 2

1
a) 50
b) 25% = 1/4 1/4 de 28 = 28/4 = 7 meninas
c)180 reais
d)48
e)400
f )1/4 ou 25%
g)4/10= 2/5 ou 40%
2)
72=30%
30-----72
100----x
30x = 7200
x = 7200 /30
x = 240 paginas
3)
100% - 24% = 76%
76/4 = 19% pra lazer
100-----2500
19-------x
100x = 2500.19
100x = 47500
x = 47500/100
x = 475 reais
4)
420 - 63 = 357h
420----100
357-----x
420x = 357.100
420x = 35700
x = 35700/420
x = 85%
5)
12+8 = 20 km
20-------5
x--------100
5x = 2000
x = 2000/5
x = 400 km                                    ok