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Mathematics
9th Grade
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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calcule a média aritmética das notas 8,0 e 9,0. Qual é o resultado?
7,5
8,0
8,5
9,0
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
João tem 10 anos, Luís tem 14 anos, Pedro tem 17 anos e Douglas tem 21 anos. Qual é a média de idade desses quatro amigos?
14 anos em média.
14,5 anos em média.
15 anos em média.
15,5 anos em média.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sabendo que uma ginasta teve 15 pontos na primeira prova, 16 na segunda e 20 na terceira.
Qual a média desta ginástica?
13
14
16
17
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Pode-se calcular a média deste conjunto de dados: azul; amarelo; azul; verde; azul; cor-de-rosa.
Sim
Não
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ganhei 5 reais na segunda, 10 reais na terça e 15 reais na quarta. Qual o valor médio que ganhei?
10
25
30
20
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
O nome da média que possui ''pesos''para o seu cálculo é chamada de:
Aritmética
Ponderada
Geométrica
Mediana
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual a média aritmética entre 42 e 24?
66
22
33
18
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