
REVISÃO PE-9ANO-MAT-3BIM
Authored by Felipe Dias
Mathematics
9th - 12th Grade
Used 9+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Em uma oficina de artesanato, 4 artesãs produzem 20 bonecas de pano em 4 dias. Se 8 artesãs trabalharem por 6 dias, quantas bonecas serão produzidas?
28
60
50
100
2.
MULTIPLE CHOICE QUESTION
5 mins • 10 pts
Se para alimentar uma família com 9 pessoas por 25 dias são necessários 5 kg de arroz, quantos kg seriam necessários para alimentar 15 pessoas durante 45 dias?
25kg
20kg
15kg
280kg
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
É cobrado em restaurante o valor da entrada somado a quantidade de bebidas consumidas. Sabendo que a entrada é de R$ 100,00 e cada bebida R$ 9,00, qual a lei de formação para a situação?
R = 100
R = 9.b + 100
R = b + 100
R = 100.b + 9
4.
MULTIPLE CHOICE QUESTION
2 mins • 15 pts
Em um Curso de inglês é cobrada a matrícula de R$ 400,00 e ainda R$ 300,00 de mensalidade. Se uma pessoa fez um investimento "total" de R$ 9 700,00, durante quantos meses ela estudou nesse Curso?
29 meses
31 meses
30 meses
12 meses
5.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Para alugar um apartamento, Joel precisou dar um valor se R$ 4 500,00 de início e ainda R$ 3 000,00 de "aluguel mensal". Indique a alternativa que contém, a lei de formação e quanto pagou, se morou no apartamento durante 3 meses e meio.
A = 4500 + m + 3000
R$ 35 000,00
A = 4500.3,5 + 3000.3,5.m
R$ 25 000,00
A = 4500.m + 3000
R$ 15 000,00
A = 4500 + 3000.m
R$ 15 000,00
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quais as raízes das funções:
(Raízes) ou (Zero)
a) f(x) = 4x² - 20x
b) f(x) = x² - 10x + 21
c) f(x) = 5x + 30
a) 0; 5
b) 3; 7
c) -6
a) 1; 5
b) 2; 5
c) 6
a) 0; -5
b) -3; 7
c) -12
a) 0; 5
b) 3; -7
c)0,6
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual o valor máximo de f(x) = - x² + 12x ?
a) 12
b) -12
c) 36
d) -18
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