
Henrique Sadi 1
Authored by Thaís Ribeiro
Mathematics
9th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
a. A quantos centímetros equivale um decímetro?
b. A quantos centímetros cúbicos equivale um litro?
a. 1 dm = 10 cm
b. 1000 cm³ = 1L
a. 1 dm = 100 cm
b. 1000 cm³ = 1L
a. 1 dm = 10 cm
b. 100 cm³ = 1L
a. 1 dm = 2 cm
b. 1000 cm³ = 1L
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
4,858585... é o mesmo que
3.
OPEN ENDED QUESTION
5 mins • 1 pt
Qual a fração que representa a dízima periódica 0,43222...?
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4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Qual é a fração geratriz da dízima periódica 0,272727...?
Answer explanation
É uma dízima periódica simples, então basta analisar de quantos algarismos é composto um período e assim saberemos a quantidade de algarismos 9 no denominador da fração.
Após esse processo, simplifique.
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Uma pessoa paga por R$12,80 por 256g de peito de peru. Nesse supermercado, qual o preço do quilograma desse produto?
R$25,60
R$32,76
R$40,00
R$50,00
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
(PUC-MG) Um reservatório, contendo 200 litros de água, está sendo esvaziado por meio de uma torneira cuja vazão é de 200 cm³ por minuto. O tempo necessário para esvaziar completamente o reservatório, em minutos, é
1
10
100
1000
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Um hectare equivale a 10 000 m². Qual a área de uma fazenda de 1000 hectares, em quilômetros quadrados?
0,1
1
10
100
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