Quizz 1 - 8º Ano - Sistema de Equações
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Túlio Naamã
Used 14+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A solução do sistema
x + y = 12
x - y = - 2
é:
S={(10,2)}
S={(7,5)}
S={(6,6)}
S={(5,7)}
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Um refrigerante e um salgado custam 2 euros. Dois refrigerantes e um salgado custam 3,25 euros. O refrigerante e o salgado custam respetivamente:
1 e 2 euros
1,25 e 0,75 euros
0,75 e 1,25 euros
ambos custam 1 euro
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Considera o par ordenado (1,0).
Qual dos seguintes sistemas de equações tem como solução este par ordenado?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Observa a figura. Sem efetuar cálculos, indica o conjunto solução do sistema de equações representado.
{(2,1)}
{(0,2)}
{(4,0)}
{(1,2)}
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Considera a seguinte equação 2y=3x-5 .
Quais os pares ordenados que são solução da equação?
(2,1)
(−3,3)
(1,−1)
(1,2)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
O par ordenado (4,-1) é solução das equações:
x-4y=12
x-y=5
3x+2y=-10
0,5x-y=3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A soma entre dois números é 20, e a diferença entre eles é 2. Quais são os números?
X = 10 e Y = 10
X = 9 e Y = 11
X = 15 e Y = 5
X = 11 e Y= 9
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