FLASHCARD - EXPRESSÕES ALGÉBRICAS
Flashcard
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
O que é uma expressão algébrica?
Back
Uma expressão algébrica é uma combinação de números, variáveis e operadores matemáticos (como adição, subtração, multiplicação e divisão) que representa um valor.
2.
FLASHCARD QUESTION
Front
Como se escreve a quarta parte de um número em forma de expressão algébrica?
Back
3.
FLASHCARD QUESTION
Front
Qual é a fórmula da demanda (D) em relação ao preço (P) dada por D = 4.000 – 50P?
Back
A fórmula indica que a demanda diminui à medida que o preço aumenta.
4.
FLASHCARD QUESTION
Front
Como calcular a demanda para P = 60 na fórmula D = 4.000 – 50P?
Back
Substitua P por 60: D = 4.000 - 50(60) = 4.000 - 3.000 = 1.000.
5.
FLASHCARD QUESTION
Front
Qual é a expressão algébrica que representa a taxa de entrega em uma pizzaria com taxa fixa e por quilômetro?
Back
6.
FLASHCARD QUESTION
Front
Como se representa o total arrecadado em um teatro com ingressos para adultos e crianças?
Back
7.
FLASHCARD QUESTION
Front
Back
Substituindo, temos: 5^2 - 7(5) + (-1) = 25 - 35 - 1 = -11.
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