
Quiz sobre Sistemas de Equações
Authored by FATIMA ROYER
Mathematics
8th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a expressão para x obtida na equação (II)?
x = 4 + 5y
x = 4 - 5y
x = (4 + 5y) / 3
x = (4 - 5y) / 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a solução final do sistema de equações após aplicar o método da adição?
V = {(2, 3)}
V = {(3, 1)}
V = {(1, 2)}
V = {(0, 0)}
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o Conjunto Verdade para o sistema {4x + y = 1/2; 3y + 12x = 3/2}?
V = {(2,2)}.
V = {(3/2, -1)}.
V = {(1,5)}.
V = {(2,3)}.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a classificação do sistema {2x - 5y = 4; x/2 + 2y = -5/4}?
Impossível.
Possível e Indeterminado (SPI).
Possível e Determinado (SPD).
Indeterminado.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se a idade do pai é representada por $ p $ e a do filho por $ f $, qual é a equação que representa a soma de suas idades?
$ p + f = 30 $
$ p + f = 32 $
$ p + f = 28 $
$ p + f = 35 $
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a solução para o sistema de equações $ 2x + 3y = 85 $ e $ 3x - 2y = 30 $?
$ x = 10, y = 5 $
$ x = 20, y = 15 $
$ x = 15, y = 10 $
$ x = 25, y = 20 $
7.
DROPDOWN QUESTION
30 sec • 1 pt
A soma de 3 números inteiros é 10. Se o dobro do primeiro é igual ao triplo do segundo, o segundo número é (a)
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