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BobEsponjah
@BobEsponjah
November 2019
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A) 6 são 20% de que número? b) Quanto valem 4,5% de R$650,00?
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narutogame13
Verified answer
Regrinha de três simples:
a)
6 ---------------- 20%
x ---------------- 100%
20x = 6x100
20x = 600
x = 600/20
x = 30.
b) 650 --------- 100%
x ----------- 4,5
100x = 650x4,5
100x = 2925
x = 2925/100
x = 29,25.
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Verified answer
Regrinha de três simples:a)
6 ---------------- 20%
x ---------------- 100%
20x = 6x100
20x = 600
x = 600/20
x = 30.
b) 650 --------- 100%
x ----------- 4,5
100x = 650x4,5
100x = 2925
x = 2925/100
x = 29,25.