Teste de QI
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Rafael Bruno
Used 21+ times
FREE Resource
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26 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Complete corretamente a frase: Quando um termo da equação mudar de lado do sinal de igual, devemos
inverter a operação.
sempre dividir a operação.
sempre multiplicar a operação.
subtrair a operação.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Resolva a seguinte equação: 23x − 16 = 14 − 17x
3/4
5
21
4/3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual o resultado da equação 3x - 10 + 13= -2x + 28?
1
4
6
5
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A soma de um número x com o dobro de um número y é - 7; e a diferença entre o triplo desse número x e número y é igual a 7. Sendo assim, é correto afirmar que o produto xy é igual a:
-2
-4
-15
-12
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um estudante pagou um lanche de 8 reais em moedas de 50 centavos e 1 real. Sabendo que, para este pagamento, o estudante utilizou 12 moedas, determine, respectivamente, as quantidades de moedas de 50 centavos e de um real que foram utilizadas no pagamento do lanche e assinale a opção correta.
5 e 7
4 e 8
6 e 6
8 e 4
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Carlos resolveu, em um final de semana, 36 exercícios de matemática a mais que Nilton. Sabendo que o total de exercícios resolvidos por ambos foi 90, o número de exercícios que Carlos resolveu é igual a:
63
54
36
27
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A expressão 9x² - 25 é equivalente a:
(3x + 5) . (3x + 5)
(3x + 5) . (3x - 5)
3x. (3x - 25)
(3x - 5) . (3x - 5)
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