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rosijanka [135]
4 years ago
9

Which expressions are equivalent to -6.3x - 4.2 ?

Mathematics
2 answers:
valentina_108 [34]4 years ago
4 0

Answer:

First 3 are equivalent the last 3 are not.

Step-by-step explanation:

Proof

Zarrin [17]4 years ago
3 0

Answer:

6.3x - 4.2

Step-by-step explanation:

r

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Se vendieron un total de 430 boletos para la obra de teatro escolar. Los boletos eran o de adulto o de estudiante. Se vendieron
BartSMP [9]

Resolviendo un sistema de ecuaciones, veremos que se vendieron 250 boletos de adulto.

<h3>¿Cuántos boletos de adulto fueron vendidos?</h3>

Definamos las variables:

  • x = boletos de adulto vendidos.
  • y = boletos de estudiantes vendidos.

Se vendieron un total de 430 boletos, entonces:

x + y = 430

Y se vendieron 70 boletos de estudiante menos que boletos de adulto:

y = x - 70

Tenemos el sistema de ecuaciones:

x + y = 430

y = x - 70

Para resolverlo, podemos reemplazar la segunda ecuación en la primera:

x + y = 430

x + (x - 70) = 430

2x = 430 + 70 = 500

x = 500/2 = 250

Se vendieron 250 boletos de adulto.

Sí quieres aprender más sobre sistemas de ecuaciones:

brainly.com/question/13729904

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5 0
2 years ago
If d = 2, what is the value of ?
Rus_ich [418]
Need more information. Can’t answer d=2 the answer would have to be “d”
6 0
3 years ago
PLEASE HELP TIMED TEST What is the value of x in the matrix equation below?
Ksivusya [100]

Answer:

x = 1

Step-by-step explanation:

Given the matrix;

-2\left[\begin{array}{ccc}x&-1\\3&5\end{array}\right] + \left[\begin{array}{ccc}3&8\\-1&6\end{array}\right] = \left[\begin{array}{ccc}x&10\\-7&-4\end{array}\right]

Converting to equations

From the first row of each matrices

-2x + 3 = x

Collect the like terms

-2x - x = -3

-3x = -3

x = -3/-3

x = 1

Hence the value of x is 1

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3 years ago
How many microseconds are in one second?
Greeley [361]
The answer is 1,000,000
7 0
4 years ago
13m +19 =14m m = what<br>​
dexar [7]

Answer: m = 19

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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