SAEB - 9º Ano - Eixo: Álgebra
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Andrey Camurça
Used 6+ times
FREE Resource
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
{1, 3}
{2, 3}
{-3, -1}
{-1, 3}
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x=3.
x=5.
x=15.
x=20.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(9A1.2) Na situação a seguir, indique a equação que nos permite encontrar o número procurado. Amanda vai realizar uma viagem e estava com 81 reais, gastou 9 reais com um almoço durante a viagem e comprou 6 refrigerantes e 6 salgados que custaram o mesmo valor cada um, para consumir durante a viagem. Qual a equação que melhor expressa o problema?
6x – 9 = 81
6x + 9 – 81 = 0
12x = 81 + 9
12x + 9 = 81
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(9A1.2 – Moderna) Em um abrigo para animais abandonados há 1 350 animais, sendo que existem 4 vezes mais gatos do que cachorros. Considerando que é quantidade de gatos e a quantidade de cachorros que há no abrigo, o sistema de equações que deve ser feito para determinar a quantidade de animais é
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(9A1.3) Observe a sequência de figuras e identifique qual é a expressão algébrica que representa a sequência da quantidade de quadradinhos, onde cada lado é representado por n.
n2
n2 +42
n2 +(n+1)2
(n+2)²
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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