Sistemas de equações
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
margareth sikorski
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor de X e Y no sistema de equação abaixo?
2 x + Y = 20
-2x + 2Y = 4
X = 6, Y = 8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O par ordenado que representa a solução do sistema é:
X+ 2Y = 9
2X - Y = -2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O par ordenado que representa a solução do sistema é :
X - Y =3
X + 2Y = 9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual sistema de equações representa o problema a seguir:
Numa prova de 30 questoes , um aluno fez 20 pontos. Sabe-se que ele ganhava 3 pontos para cada resposta correta, e perdia 2 pontos para cada resposta errada.
X + Y = 20
3X+ 2Y = 30
X + Y = 30
3X - 2 Y = 20
X + Y = 30
3X + 2Y = 20
X + Y = 20
3X - 2Y = 30
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em um sítio há porcos e galinhas, totalizando 86 animais. Sabendo, que a o todo, são 196 pernas, quantos porcos e quantas galinhas existem no sítio?
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