Question

tem alguém para me ajudar ​

Answer 1

2. a) 8%
b) 15%
c) 0%
d) 1%
e) 100%
f) 90%

3. a) 7/100
b) 13/100
c) 1,5/100
d) 10/100
e) 20/100
f) 0,5/100

4. a) 2/5 = x/100
5x=200
X=200/5
X=40

40/100=40%

b) 3/10 = x/100
10x=300
X=300/10
X=30

30/100=30%

c) 5/20=x/100
20x=500
X=500/20
X=25

25/100=25%

d) 7/4=x/100
4x=700
X=700/4
X=175

175/100=175%

e) 3/7=x/100
7x=300
X=300/7
X= 42,85...

42,85/100= 42,85%