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LarissaMia
@LarissaMia
December 2019
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Calcule:
a)6% de 20%
b)12% de 40%
c) 32% de 45%
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PauloLuis
A palavra "de" significa multiplicação, portanto.
a)
6% de 20%
6% . 20%
Sabemos também que % significa o número sobre 100, então
6% = 6/100 = 3/50
20% = 20/100 = 1/5
3/50 . 1/5 = 3/250
b)
12% de 40%
12% = 12/100 = 6/50 = 3/25
40% = 40/100 = 4/10 = 2/5
3/25 . 2/5 = 6/125
c)
32% de 45%
32% = 32/100 = 16/50 = 8/25
45% = 45/100 = 9/20
8/25 . 9/20 = 72/500 = 36/250 = 18/125
2 votes
Thanks 2
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Lista de comentários
a)
6% de 20%
6% . 20%
Sabemos também que % significa o número sobre 100, então
6% = 6/100 = 3/50
20% = 20/100 = 1/5
3/50 . 1/5 = 3/250
b)
12% de 40%
12% = 12/100 = 6/50 = 3/25
40% = 40/100 = 4/10 = 2/5
3/25 . 2/5 = 6/125
c)
32% de 45%
32% = 32/100 = 16/50 = 8/25
45% = 45/100 = 9/20
8/25 . 9/20 = 72/500 = 36/250 = 18/125