
recuperação de matemática
Authored by DAYANE GOBEL
Mathematics
8th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Qual é o principal tópico dos objetivos da lição?
Resolvendo equações quadráticas
Resolvendo sistemas lineares
Resolvendo equações exponenciais
Resolvendo equações logarítmicas
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Qual é o valor de y após resolver a equação 2y = 20?
5
10
15
20
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Sendo x + y = 10 e x - y = 2, resolva o sistema de equação e determine o valor das variáveis.
x = 5 e y = 5
x = 6 e y = 4
x = 4 e y = 5
x = 6 e y = 5
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Resolva o sistema
x + y = 31
2x + 4y = 82
x = 21 e y = 10
x = 20 e y = 10
x = 21 e y = 9
x = 18 e y = 10
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Uma caravana de povos nômades atravessa o Deserto do Saara com o auxílio de camelos e dromedários, em um total de 50 animais. Sabe-se que um camelo tem duas corcovas, e o dromedário, apenas uma; e que, nessa cáfila, podemos contar 80 corcovas. Qual equação representa o número total de corcovas?
x + y = 50
2x + y = 80
x - y = 30
2x - y = 50
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
De acordo com Camila, o que x representa?
Número de dromedários
Número de camelos
Número total de animais
Número total de corcovas
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
De acordo com Camila, o que representa y?
Número de dromedários
Número de camelos
Número total de animais
Número total de corcovas
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