1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrej [43]
3 years ago
9

Acertijo.

Mathematics
1 answer:
Cerrena [4.2K]3 years ago
8 0

La edad de cada uno de los integrantes del acertijo es:

  • <u>Luisa = 3 años </u>
  • <u>Juan = 6 años </u>
  • <u>Carmen = 8 años</u>

<em>Cálculo por medio de ecuaciones y el </em><em>método de igualación</em>.

Haciendo uso de la información brindada en el ejercicio, se procede a formular variables con las cuales se calcularán las ecuaciones, por lo tanto:

  • <em>X = Edad de Luisa</em>
  • <em>Y = Edad de Juan</em>
  • <em>Z = Edad de Carmen</em>

Con el enunciado: <em>"Luisa es 3 años más joven que su hermano Juan"</em> se crea la primera ecuación:

  • 1. Y = X + 3

Con el enunciado: <em>"Su hermana Carmen es 2 años mayor que Juan"</em>, se crea la segunda ecuación:

  • 2. Z = Y + 2

Y con el enunciado: <em>"Juan tiene el doble de edad que Luisa"</em>, se crea la tercera ecuación:

  • 3. X = \frac{Y}{2}

Ahora, utilizando el método de igualación, se reemplaza la <em>tercera ecuación en la primera</em>:

  • Y = X + 3
  • Y = (\frac{Y}{2}) + 3

Y se procede a sumar:

  • Y = (\frac{Y}{2}) + 3
  • Y = \frac{Y+6}{2}

El dividendo se pasa al otro lado de la igualdad a multiplicar:

  • 2Y = Y + 6

Y la variable "Y" que está sumando, se pasa al otro lado de la igualdad a restar:

  • 2Y - Y = 6
  • <u>Y = 6</u>

Con el valor de Y (edad de Juan) <em>se calcula X con la tercera ecuación</em>:

  • X = \frac{Y}{2}
  • X = \frac{6}{2}
  • <u>X = 3</u>

Una vez calculado el valor de X (edad de Luisa), se procede a <em>calcular el valor de Z con la segunda ecuación</em>:

  • Z = Y + 2
  • Z = 6 + 2
  • <u>Z = 8</u>

Por lo tanto, se calcula que <u>la edad de Luisa es 3 años, la edad de Juan es 6 años y la edad de Carmen es 8 años</u>.

Más información sobre ecuaciones:

brainly.com/question/15415929?referrer=searchResults

You might be interested in
A point is chosen in the circle at random. Determine which of the statements are true. Check all that apply. It is unlikely the
Natali [406]

Answer:

A,D,E

Step-by-step explanation:

I just took the quiz.

4 0
3 years ago
Read 2 more answers
What is the fully factored form of the expression 45x²y2 + 18x3
Llana [10]

Answer:

9x^2(5y^2 + 2x).

Step-by-step explanation:

First find the Greatest Common Factor of the 2 terms.

GCF of 18 and 45 = 9

GCF of x^2 and x^3 = x^2.

The complete GCF is therefore 9x^2.

So, dividing each term by the GCF, we obtain:

9x^2(5y^2 + 2x).

4 0
2 years ago
What is the approximate length of the diameter, d? Use 3.14
Dimas [21]

Answer: 15.9

Step-by-step explanation:

Just took the quiz

6 0
2 years ago
Read 2 more answers
The area of the red square is 16 ft. The area of the yellow square is 25 ft.
lakkis [162]

Answer:

I believe that the area of the green square is 9ft²

4 0
3 years ago
Read 2 more answers
richard bought rolls for a bbq he bought 4 1/4 dozen wheat rolls and 5 2/3 snowflake rolls if 4 1/3 were eaten at the bbq how ma
victus00 [196]
The equation for this would be 41/4 + 52/3 - 41/3= ?
So then you just change all the denominators to their lcm, which is 12 and multiply the numerator accordingly.
123/12 + 208/12 - 164/12 = 167/12
4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the mean, median, mode and range of the data set after you perform the given operation on each data value.
    13·2 answers
  • The area of the base of a right triangular prism is 9cm and the length of the prism is 10cm. Calculate the volume of the prism.
    5·1 answer
  • Need help with #1 please it’s algebra!
    9·2 answers
  • The solution to a system of two linear equations is (4, -3). One equation has a slope of 4. The slope of the other line is the n
    9·1 answer
  • A three-dimensional figure is shown. which bet represents that figure?
    10·1 answer
  • 5. The graph of a system of two equations is a pair of parallel lines. Does the system have a solution? Explain​
    5·1 answer
  • a certain pharmaceutical company know that, on average 4% of a certain type of pill has an ingredient that is below the minimum
    9·1 answer
  • Find the y-intercept and the slope of the line. y=-5/4x+3
    11·1 answer
  • (See pic!)The area of a rectangle is 3 3/4
    5·1 answer
  • HELP!! I know how to find the answer but I don't know how to use the number line to find the answer.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!