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JocastaPimenta
@JocastaPimenta
November 2019
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Resolva com regra de três
a)90%de R$105,00=___
b)35%de R$___=R$28,00
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geokleinkaufc
Olá!
a) 100% --- 105
90% --- x
100x = 9.450
x = 9.450 ÷ 100
x = 94,5
Corresponde a 94,50.
b) 100% --- x
35% --- 28
35x = 2.800
x = 2.800 ÷ 35
x = 80
35% de 80 = 28,00
0 votes
Thanks 2
leonardoholandoz43re
A) 105*90/100 = 94,5
B) x*35/100 = 28,00
35x/100 = 28
35x = 2800
x = 80
0 votes
Thanks 1
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Lista de comentários
a) 100% --- 105
90% --- x
100x = 9.450
x = 9.450 ÷ 100
x = 94,5
Corresponde a 94,50.
b) 100% --- x
35% --- 28
35x = 2.800
x = 2.800 ÷ 35
x = 80
35% de 80 = 28,00
B) x*35/100 = 28,00
35x/100 = 28
35x = 2800
x = 80