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Razones y Proporciones - Sexto grado

Quiz

(3)
Played 44 %Accuracy 71 Average time 02:15

About this activity

Comprende razones y proporciones

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Costa Rica

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Razones y Proporciones - Sexto grado
 

Razones y Proporciones - Sexto gradoOnline version

Comprende razones y proporciones

by Ana Lìa Rodrìguez Umaña
1

¿Qué es una razón en matemáticas de sexto grado?

2

Si 6 manzanas están para 8 personas, ¿la razón manzanas:personas?

3

¿Qué es una proporción?

4

En una proporción 3/5 = x/10, ¿cuál es x?

5

Si la proporción es 7:14 = x:28, ¿cuál es x?

6

¿Qué es el factor de escala en una figura?

7

En un gráfico, si la razón es 2:3 y se duplica todo, ¿cuál es la nueva razón?

8

¿Qué significa reducir una proporción a su forma más simple?

9

Si una receta para 4 personas usa 200 ml de leche, ¿cuánta leche para 6 personas?

10

En una proporción, ¿qué se mantiene constante?

Explicación

Una razón se expresa como cociente entre dos magnitudes.

La razón se mantiene en el orden manzanas a personas.

Una proporción iguala dos cocientes.

Cruza: 3/5 = x/10 => 3·10 = 5x => x=6.

Mantiene la relación: 7/14 = x/28. Resolviendo x=14.

El factor de escala agranda o reduce las medidas.

Multiplicar cada cantidad por 2 mantiene la proporción: 4:6.

Se simplifica dividiendo por el MCD.

Regla de tres: 200/4 = x/6 -> x=300 ml.

Lo que se mantiene es el cociente entre ambas magnitudes

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