
Sistemas de equações e Razões
Authored by GLAUCIA ROCHINSKI
Mathematics
8th Grade
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Resolva o seguinte sistema de equações lineares:
2x + 3y = 12
x - y = 1
x = 2 e y = 4
x = 2 e y = 3
x = 3 e y = 2
x = 4 e y = 2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Resolva o seguinte sistema de equações:
x + 2y = 10
3x + y = 5
x = 0 e y = 5
x = 2 e y = 5
x = 5 e y = 0
x = 5 e y = 2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A escala é um elemento obrigatório nos mapas. O seu principal objetivo é:
Apresentar o assunto tratado no documento cartográfico.
Relacionar a distância real e a distância representada.
Mostrar o significado dos elementos retratados.
Indicar as fontes dos dados consultados e representados.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Um carro percorre 150 km em 2 horas. Qual é a velocidade média do carro?
60 km/h
75 km/h
80 km/h
90 km/h
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma cidade tem uma população de 500.000 habitantes e uma área de 250 km². Qual é a densidade demográfica dessa cidade?
1000 hab/km²
1500 hab/km²
2000 hab/km²
2500 hab/km²
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se a escala de um mapa é de 1 : 100 000, qual é a distância real em km entre dois pontos que estão separados por 5 cm no mapa?
2 km
5 km
10 km
15 km
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