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NikAS [45]
3 years ago
14

Use substitution to solve each system of equations: x=y+6 x+y=10

Mathematics
1 answer:
Fittoniya [83]3 years ago
5 0
= (y+6) +y =10
= 2y + 6 = 10
= 2y = 4
Y= 2
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If you order a set of numbers from least to greatest, the middle number is the median. Find the median of the following set of n
Lesechka [4]
Put them all into decimals
0.556, 0.6, 0.065, 0.1667, 0.625
Put them in increasing order
0.065, 0.1667, 0.556, 0.6, 0.625
the median is 0.556
8 0
3 years ago
Need Help!!!! Not sure how to solve this and I need an answer quick!
Mamont248 [21]

Answer:

12 (c)

Step-by-step explanation:

8 0
3 years ago
The sum of the first 6 terms of a geometric sequence is 7, 812. the common ratio is 5. what is the second term of the sequence?
Snezhnost [94]
OH right! I should have realised that!

S6 =  7,812 = a1 * (5^6 - 1)
                               -----------  were  a1 = first term
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3906*a1 = 7812
a1 = 7812 / 3906 =  2

Therfore the second term = 2*5  = 10 Answer
4 0
3 years ago
¿Cuáles son los procedimientos a ambos lados de la igualdad que se deben realizar para calcular el valor de la incógnita x en la
PilotLPTM [1.2K]

Answer:

Los procedimientos que se deben realizar para calcular la incógnita x en la ecuación 2x+5=7 son:

  1. <u><em>El 5 que está sumando a la izquierda del igual, se pasa a restar a la derecha del igual.</em></u>
  2. <u><em>El 2 que multiplica a x a la izquierda del igual, se pasa a dividir a la derecha del igual.</em></u>

Step-by-step explanation:

Siguiendo los procedimiento descritos en la respuesta, para calcular el valor de la incógnita:

  • 2x + 5 = 7

Seguimos el primer paso: <em>el 5 que está sumando a la izquierda del igual, se pasa a restar a la derecha del igual</em>:

  • 2x = 7 - 5

Seguimos el segundo paso: <em>el 2 que multiplica a x a la izquierda del igual, se pasa a dividir a la derecha del igual:</em>

  • x=\frac{7-5}{2}

Como puedes ver, así se despejaría la incógnita x y solo faltaría operar los datos en la ecuación para obtener la respuesta:

  • x=\frac{2}{2}
  • x=1

<u><em>El resultado que nos daría la incógnita x sería 1</em></u>. Podemos probar el resultado en la ecuación original para comprobar el resultado que obtuvimos:

  • 2x + 5 = 7
  • 2 *(1) + 5 = 7
  • 2 + 5 = 7
  • 7 = 7

Así, identificamos que los procesos realizados fueron correctos.

3 0
2 years ago
A company manufactures a certain item and sells it online. The company has a business model where the cost C, in dollars, to mak
liberstina [14]

9514 1404 393

Answer:

  6

Step-by-step explanation:

Cost and revenue are equal when ...

  C = R

  2.5x +21 = 6x

  21 = 3.5x . . . . . . subtract 2.5x

  6 = x . . . . . . . . . .divide by 3.5

The company must sell 6 items to break even.

3 0
3 years ago
Read 2 more answers
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