Equações e sistemas de equações
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Larissa Tito
Used 34+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Com 22 livros de 3 cm e 7 cm de espessura flor formada uma pilha de 106 cm de altura. Quantos livros de 3 cm de espessura foram colocados nessa pilha?
12
11
10
9
8
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Na promoção de uma loja, uma calça e uma camiseta custam juntas R$ 55,00. Comprei 3 calças e 2 camisetas, pagando o total de R$ 140,00. O preço de cada calça e cada camiseta, respectivamente, é:
R$ 35,00 e R$ 20,00
R$ 20,00 e R$ 35,00
R$ 25,00 e R$ 30,00
R$ 30,00 e R$ 25,00
R$ 35,00 e R$ 35,00
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Uma das soluções da equação 3x+2y =-20 é o par ordenado (-7,1/2).
Verdadeiro
Falso
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Qual das representações corresponde a equação 2x-y=4, em que x e y são números reais?
5.
MULTIPLE SELECT QUESTION
15 mins • 1 pt
O par ordenado (4,-1) é solução das equações:
4x+y=15
3x+2y=-10
x-4y=12
0,5x-y=3
x-y=5
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
O sistema de equações apresentado, é
Possível determinado
Possível indeterminado
Impossível
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O sistema representado é:
Possível determinado
Impossível
Possível indeterminado
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