30. which expression could the expression 1/11÷4 represent? a. 1/4 of a box of cereal was given out equally…

30. which expression could the expression 1/11÷4 represent? a. 1/4 of a box of cereal was given out equally among eleven first - grade students. b. 1/11 of a box of dog food was distributed equally among four puppies. c. 1/11 of the mushrooms in the woods dissolved 4 percent of the tree next to the pond. d. a four - inch - long piece of cake was cut into eleven pieces. 31. juan cut out a polygon with scissors and card board. all the angles in the polygon were acute. what type of polygon could he have drawn? a. pentagon b. octagon c. triangle d. hexagon 32. tyrese used 1 - foot concrete cubes to build a wall in his garden. the figure below represents the wall which he built. what is the volume of the wall in cubic feet? a. 10 b. 30 c. 100 d. 300

30. which expression could the expression 1/11÷4 represent? a. 1/4 of a box of cereal was given out equally among eleven first - grade students. b. 1/11 of a box of dog food was distributed equally among four puppies. c. 1/11 of the mushrooms in the woods dissolved 4 percent of the tree next to the pond. d. a four - inch - long piece of cake was cut into eleven pieces. 31. juan cut out a polygon with scissors and card board. all the angles in the polygon were acute. what type of polygon could he have drawn? a. pentagon b. octagon c. triangle d. hexagon 32. tyrese used 1 - foot concrete cubes to build a wall in his garden. the figure below represents the wall which he built. what is the volume of the wall in cubic feet? a. 10 b. 30 c. 100 d. 300

Answer

Explanation:

30.

Step1: Analizar la expresión $\frac{1}{11}\div4$

Significa dividir $\frac{1}{11}$ en 4 partes iguales.

Step2: Comprobar opciones

La opción B dice que $\frac{1}{11}$ de una caja de comida para perros se distribuye igualmente entre cuatro cachorros, lo que coincide con la expresión $\frac{1}{11}\div4$.

31.

Step1: Recordar propiedades de polígonos

Un triángulo puede tener todos los ángulos agudos (triángulo acutángulo). Un pentágono, octágono y hexágono no pueden tener todos ángulos agudos en general.

32.

Step1: Contar capas, filas y columnas

Supongamos que hay 3 capas, 5 filas y 20 columnas de cubos de 1 pie de lado.

Step2: Calcular volumen

El volumen $V$ de un objeto formado por cubos unitarios se calcula multiplicando el número de cubos. $V = 3\times5\times 20=300$.

Answer:

  1. B. $\frac{1}{11}$ of a box of dog food was distributed equally among four puppies.
  2. C. triangle
  3. D. 300