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mario62 [17]
3 years ago
7

50 POINTS

Mathematics
2 answers:
DochEvi [55]3 years ago
8 0

Answer:

-24

Step-by-step explanation:

exis [7]3 years ago
6 0
This is the answer (4,3) x=4, y=3
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Evaluate the expression<br> x over y+ 2(y - 3) - x when x = 8 and y=-4
Margarita [4]

Answer:

-26

Step-by-step explanation:

-4+2(-4-3)-8=-4-14-8=-18-8=-26

8 0
4 years ago
4. Acertijo.
7nadin3 [17]

Las edades de cada uno de los integrantes del acertijo son:

  • Luisa = 3 años
  • Juan = 6 años
  • Carmen = 8 años

Cálculo por medio de ecuaciones.

Para identificar la edad de cada persona en el acertijo, se pueden crear ecuaciones con la información brindada, aunque, primero se deben asignar variables:

  • <em>L = Edad de Luisa</em>
  • <em>J = Edad de Juan</em>
  • <em>C = Edad de Carmen</em>

Teniendo estas variables se procede a crear las ecuaciones, la primera parte del ejercicio dice que "<em>Luisa es 3 años más joven que su hermano Juan</em>", entonces la ecuación podría ser:

  • 1. J = L + 3

La segunda parte dice que "<em>su hermana Carmen es 2 años mayor que Juan</em>", entonces:

  • 2. C = J + 2

Y la tercera parte menciona que "<em>Juan tiene el doble de edad que Luisa</em>", por lo tanto:

  • 3. J = 2L

Se realiza el método de reducción con la primera y la tercera ecuación, para calcular el valor de L:

  • 1. J = L + 3 (<em>Se multiplica por (-1) puesto que la variable que se busca reducir es J</em>)
  • 3. J = 2L

Entonces se calcula:

  • - J = - L - 3
  •  J = 2L

 

  • 0 = L - 3 (<em>El número 3 que está restando se pasa a sumar al otro lado de la igualdad</em>)
  • 3 = L
  • <u>L = 3</u>

Teniendo el valor de L, se calcula el valor de J con la tercera ecuación:

  • J = 2L
  • J = 2 * 3
  • <u>J = 6</u>

Y con el valor de J, se calcula el valor de C con la segunda ecuación:

  • C = J + 2
  • C = 6 + 2
  • <u>C = 8</u>

De esta forma, se calcula que <u>las edades de Luisa, Juan y Carmen son: 3 años, 6 años y 8 años respectivamente</u>.

Más información:

brainly.com/question/1225667?referrer=searchResults

3 0
3 years ago
( Write the word sentence as an equation.))) <br><br><br> 25 is 9 more than a number x.
elena-14-01-66 [18.8K]

Answer:

25>x<9

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Fill in the missing words
exis [7]

Answer:

0.09 is the same as 9 hundredths

0.9 is the same as 9 tenths

0.009 is the same as 9 thousands

Step-by-step explanation:

4 0
3 years ago
How would you convert the repeating, non terminating decimal into a fraction? Explain the process as you solve the problem 0.151
lorasvet [3.4K]
Divide 1515 by 100 and you would get 15.15 the divide the .15 by 3 and and you will get 3.5 so the answer will be 15 3/5
5 0
3 years ago
Read 2 more answers
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