porcentagem
5% de 100=
3% de 20=
10% de 500=
25% de 450=
12% de 730=
60% de 1300=
2% de 100=
4% de 50=
25% de 450=
12% de 730=
60% de 1300=
Soluções para a tarefa
Resposta:
5% de 100=
100—--100%
X—--5%
100x=100•5
100x=500
X=500/100=5/1 (we cut the available zeros from the two numbers)
X=5
3% de 20=
20—-100
X—---3
100x=20*3
100x=60
X=60/100=6/10 (we cut the available zeros from the two numbers)
=0,6
10% de 500=
500—---100
X—---10
100x=500*10
100x=5000
X=5000/100=50/1 (we cut the available zeros from the two numbers)
x=50
25% de 450=
450—--100
X—----25
100x=450*25
100x=11250
X=11250/100=1125/10 (we cut the available zeros from the two numbers)
X=112,5
12% de 730=
730—--100
X—---12
100x=730*12
100x=8760
X=8760/100=876/10 (we cut the available zeros from the two numbers)
X=87,6
60% de 1300=
1300—--100
X—--60
100x=1300*60
100x=78000
X=78000/100=780/1
X=780
2% de 100=
100—-100
X—--2
100x=100*2
100x=200
X=200/100=2/1
X=2
4% de 50=
50—-100
X—--4
100x=50*4
100x=200
X=200/100=2/1
X=2
25% de 450=
450—-100
X—--25
100x=450*25
100x=11250
X=11250/100=1125/10
X=112,5
12% de 730=
730—-100
X—---12
100x=730*12
100x=8760
X=8760/100=876/10 (we cut the available zeros from the two numbers)
X=87,6
60% de 1300=
1300—--100
X—--60
100x=1300*60
100x=78000
X=78000/100=780/1
X=780
Explicação passo a passo: