MBRL

MBRL

8th Grade

25 Qs

quiz-placeholder

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MBRL

MBRL

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

LERTYANE LIMA

Used 902+ times

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25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Um artigo que custava R$ 40,00 e sofreu reajuste de 12%. Qual o atual valor?

R$ 4,48

R$ 8,40

R$ 44,80

R$ 48,40

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Qual o novo valor de um objeto que custava R$ 62,00, após um reajuste de 30%?

R$ 18,60

R$ 80,60

R$ 60,80

R$ 86,00

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Efetue (x² +1)( x + 7)

x³ + 7x²

x³ - 7x² + x + 7

x³ + 7x² + x + 7

x³ + 7

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Qual o resultado da multiplicação ( xy - 4y)( xy + x + y) ?

x²y² + x²y - 3xy² - 4xy - 4y²

x²y² - 3xy² - 4xy - 4y²

x²y² + x²y - 4xy - 4y²

x²y² + x²y + 3xy² + 4xy + 4y²

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Para produzir 32 queijos de leite de cabra, todos de mesmo peso, o senhor Nagib usou 56 litros de leite. Para produzir 50 desses queijos, quantos litros de leite serão necessários?

62 litros

72,5 litros

87,5 litros

91 litros

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Um fogão que custava R$ 670,00 após um reajuste passou a custar R$ 737,00. Qual foi o valor do reajuste?

6%

10%

12%

18%

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Um micro-ondas que custava R$ 390,00 após um reajuste passou a custar R$ 448,50. Qual foi o valor do reajuste?

10%

12%

15%

18%

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