If 5x – 3y = 7 and –3x – 5y = 23, what is the value of x?

Answers

Answer 1

Answer:

X= -1

Y= -4

That's the answer I believe

Answer 2

5x - 3y = 7

First, Add 3y to both sides

5x - 3y + 3y = 7 + 3y

5x = 3y + 7

Then, Divide both sides by 5

[tex]\frac{5x}{5}[/tex] = [tex]\frac{3y + 7}{5}[/tex]

[tex]x = \frac{3}{5} y[/tex] + [tex]\frac{7}{5}[/tex] (Answer to #1)

-3x - 3x - 5 = 23

First, we will simplify both sides of the equation

-3x + -3x + -5 = 23

Next, We will combine like terms

(-3x + -3x) + (-5) = 23

-6x + -5 = 23

-6x - 5 =23

Then, we will Add 5 to both sides

[tex]\frac{-6x}{-6}[/tex] = [tex]\frac{28}{-6}[/tex]

x = [tex]\frac{-14}{3}[/tex] (Answer to #2)


Related Questions

a movie poster is 10 in long and 22 inch tall what is th are of this poster

Answers

Answer:

220

Step-by-step explanation:

Area = length · width

Area = 22 · 10

Area = 220

Note:

Please mark as Brainliest! <3

-2/17x=10 what is the solution set?

Answers

Answer:

x=-85

Step-by-step explanation:

Two hundred
copies can be
mode for $6.00.
How much will 150 copies cost?

Answers

Answer:

$4.50 for 150 papers

Step-by-step explanation:

7.2 is 15% of what number?​

Answers

Answer:

48

Step-by-step explanation:

7.2 is 15% of the number 48

Evaluate the expression 6+(-3)​

Answers

Answer:

3

Step-by-step explanation:

A Addition sign and a negative sign is equal to a negative

So 6 - 3 is 3

I hope this helped :)

How many decimal places are in the product?

1.684×10.2

Answers

Answer:

4

Step-by-step explanation:

in all there is 4 places behind the decimal

Answer:

4

Step-by-step explanation:

17.1768

Which function is most likely graphed on the coordinate plane below?
y у

Answers

Answer:b

Step-by-step explanation:

i took it

simplify the ratio 3 hours 1 hour 20 minutes

Answers

Answer:

9 : 4

Step-by-step explanation:

3 hours = 3*60 = 180 minutes

1 hour 20 min = 1*60 + 20 = 80 minutes

[tex] \frac{180}{80} = \frac{18}{8} = \frac{9}{4} = 9 : 4[/tex]

We are required to simplify the ratio 3 hours 1 hour 20 minutes

The simplest ratio of 3 hours : 1 hour : 20 minutes is 9 : 3 : 1

Convert hour to minutes

1 hour = 60 minutes

3 hours = 60 minutes × 3

= 180 minutes

1 hour = 60 minutes

So,

3 hours : 1 hour : 20 minutes

= 180 minutes : 60 minutes : 20 minutes

= 18 : 6 : 2

= 9 : 3 : 1

Therefore, the simplest ratio of 3 hours : 1 hour : 20 minutes is 9 : 3 : 1

Read more:

https://brainly.com/question/24425126

what is the solution of this system of Linear equations? y=3×-2 and y-2=×​

Answers

Answer:

(2, 4)

Step-by-step explanation:

Given the system of equations

y=3×-2.... 1

y-2=×​ ... 2

Substitute 2 into 1

y = 3(y-2) - 2

y = 3y - 6 - 2

y - 3y =-6-2

-2y = -8

y = -8/-2

y = 4

Recall that

x = y - 2

x = 4-2

x = 2

Hence the solution (x, y) is (2,4)

What correctly rewrites 30+45 as the product of the greatest common factor and the sum of two numbers?

Group of answer choices

15(2+45)

15(2+3)

None of These

2(15+3)

3(10+15)

Answers

Answer:

15(2+3)

Step-by-step explanation:

30+ 45= 75

(2+3)= 5

15*5= 75

Hope this helps

Good day!

5. If three tacos and two drinks cost $13.00, and four tacos and one drink costs $15.25, how much does
a taco cost?
O a) $2.75
O b) $3.00
O c) $3.25
O d) $3.50
O e) $3.75

Answers

Answer:

D. 3.50

Step-by-step explanation:

3t+2d=$13.00

4t+d=$15.25

3t+2d=$13.00

8t+2d=$30.50

E2-E1

5t=$30.50-$13.00

t=3.5

The taco cost is option D. 3.50

Given that,

If three tacos and two drinks cost $13.00, and four tacos and one drink costs $15.25.

Based on the above information, the calculation is as follows:

3t+2d=$13.00 ......(1)

4t+d=$15.25 .......(2)

Here we have to multiply by 2 in equation 2

So,  

3t+2d=$13.00

8t+2d=$30.50

So,  

5t=$30.50-$13.00

t=3.5

Learn more: brainly.com/question/16911495

On the real number line, what is the midpoint of —3
and 11?
F. -5
G. 0
H. 4
J. 7
K. 14

Answers

Answer:

4

Step-by-step explanation:

Hope this helps :)

On the real number line, the midpoint of —3 and 11 will be 4.

What does a midpoint mean?

Midpoint, as the word suggests, means the point which lies in the middle of something.

Midpoint of a line segment means a point which lies in the mid of the given line segment.

The coordinates of midpoint of the line segment AB are;

Suppose we've two endpoints of a line segment as:

A(p,q), and B(m,n)

Then let the midpoint be M(x,y) on that line segment. Then, its coordinates are:

[tex]x = \dfrac{p+m}{2}[/tex]

and

[tex]y = \dfrac{q+n}{2}[/tex]

Hence, On the real number line, the midpoint of —3 and 11 will be 4.

Learn more about midpoint here;

https://brainly.com/question/5127660

#SPJ2

x − (y − y)= for x = 3 and y = 6

Answers

Answer:

3

Step-by-step explanation:

x − (y − y)

3-(6-6)

3-0

3

Step-by-step explanation:

Given

x = 3 and y = 6 Then

x - (y-y)

= 3 - ( 6 - 6 )

= 3

Hope it will help :)

Help me plz thanks my guy or gurl

Answers

Answer:

its j daddy

Step-by-step explanation:

2log2(x + 15)_log2x=6​

Answers

Answer:

hope it helps u

hope this is what u want

9514 1404 393

Answer:

  x = 9 or 25

Step-by-step explanation:

Taking antilogs and solving the quadratic, you have ...

  [tex]\dfrac{(x+15)^2}{x}=2^6\\\\x^2 +30x +225 = 64x\qquad\text{multiply by x}\\\\x^2 -34x +225 = 0\qquad\text{subtract $64x$}\\\\(x -25)(x -9)=0\qquad\text{factor}\\\\\boxed{x=25\quad\text{or}\quad x=9} \qquad\text{values that make the factors 0}[/tex]

Pls help extra points and mark brainlist

Answers

Answer:

h=2 or B

Step-by-step explanation:

if you plug in all the solutions it works

8+h/10

8+2/10

=10/10

=1

so its B

The first night in a hotel costs 60 dollars. All additional nights cost 49 dollars. How many nights did we stay
at this hotel if the total bill was 501 dollars?
nights

Answers

Total nights: 10
(501-60)/49=total nights
9 nights paying $49
1 night paying $60

501-60=441
441/49=9

1 night at $60
9 nights at $49
10 total nights

HELP PLS
ACCOUNTING
If the owner of a company withdrew $200 during a period, the closing entry
for the Owner, Withdrawals account would show a ___.

O A. $200 credit to Income Summary
O B. $200 debit to Owner, Withdrawals
C. $200 credit to Owner, Capital
O D. $200 debit to Owner, Capital

Answers

Answer:

O D. $200 debit to Owner, Capital

Step-by-step explanation:

The above is the right way which would appear on the statement of account of the company owner. This is because, the $200 was actually a money taken by the owner hence it being a debit from the account (given to the owner). For the fact that it is cash amount, it would be show capital.

Answer:

D)

Step-by-step explanation:

a pe xxx

A venue can sell 750 750 tickets per concert. For an upcoming concert, they have been selling 25 25 tickets a day. Write a linear function that represents the number of tickets remaining at a given time.

Answers

Answer:

y=25x+750

Step-by-step explanation:

You have 750 fifty per day which will be your b (y=mx+b)  and you will make 25 tickets per person which will be your m.

Answer:

y=750-25

Step-by-step explanation:

Ismail tried to prove that sin(θ) = cos(90°− θ) using the following diagram. His proof is not correct.

What is the first mistake in Ismail's proof?

Answers

Answer:

C. Ismail used the wrong sides in his ratio for cos (90 - θ)

Step-by-step explanation:

All steps correct apart from:

cos (90° - θ) = AC/BC

It should be

cos (90° - θ) = AB/BC

Correct choice is C

Answer:

c

Step-by-step explanation:

Which form of a quadratic would be the easiest to identify the y-intercept?

A. Vertex Form

B. Standard Form

C. Intercept Form

ads

Answers

It’s B, which is standard form

Which of the following represents 3x - 5y + 10 = 0 written in slope-intercept form?

y = -x + 2
y = x - 2
y = x + 2

Answers

Answer:

Rewritten in slope-intercept form,

y = mx + b

The answer is

y = 3/5x + 2.

Answer:

y = 3/5x + 2

Step-by-step explanation:

Emma buys a house for 2201 500
She sells the house for £213 590
Calculate the percentage profit Emma makes

Answers

Answer:

Emma buys a house for £201 500. She sells the house for £213 590. Calculate the percentage profit Emma makes. change original x 10o. 213590 -- 201500.

Answer:

6%

Step-by-step explanation:

In the rectangle
P
Q
R
S
, the side
P
Q
is of length
2
and the side
Q
R
is of length
4
.

Points
T
and
U
lie inside the rectangle so that
P
Q
T
and
R
S
U
are equilateral triangles.

What is the area of the quadrilateral
Q
R
U
T
?

Answers

In order to form triangle PQT and quadrilateral TQRS, point T must lie on line PS which is 16 cm. long.

If the ratio of PT to TS is 5:3 and the total length of PS is 16, then PT must be 10 and TS must be 6 (10 + 6 =16) and 10:6 is the same ratio as 5:3. Another way to think about it is 5/3 = 10/6.

Now you have all the lengths that you need to find the areas of the quadrilateral and the triangle.

Make sure you draw a diagram of it!!

Josh attempted 56 free throws during the basketball season.
He made 5/7 of them. How many free throws did he make?
A. 57 + 56 = 5657
B. 57 × 56 = 40
C. 56 ÷ 57 = 40
D. 56 – 57 = 5527

Answers

Answer:

B

Step-by-step explanation:

5/7 * 56 which is 8*5 which is 40.

When having a fraction of a whole number just multiply it to the whole number.

Answer:

: He made 32 free throws.

Step-by-step explanation:

 It can also be solved by transforming the percentage in a fraction such as 57% = 57/100 and then multiplying it by the total attempts.

Determine the domain and range of the graphed function.

A) domain: (-∞, ∞) range: (-∞, 10)

B) domain: (-∞, ∞) range: (-∞, 10]

C) domain: (-∞, 10) range: (-∞, ∞)

D) domain: (-∞, 10] range: (-∞, ∞)

Answers

Answer:

B

Step-by-step explanation:

We assume the function goes infinitely both "left" and "right" so the domain is (-inf, inf).

We can also see that it has a maximum in (0, 10), so it takes all the values from -inf to 10 exactly. If it never reached 10, it'd be (-inf, 10) but it does, so it's (-inf, 10].

Lugar geométrico infinito formado por un conjunto de puntos que conservan la misma dirección

Answers

Answer:

l lugar geométrico de los puntos que equidistan a otros dos puntos fijos {\displaystyle A}A y {\displaystyle B}B es una recta o eje de simetría de dichos dos puntos. Si los dos puntos son los dos extremos de un segmento {\displaystyle {\overline {AB}}}\overline {AB}, dicha recta, o lugar geométrico, es llamada mediatriz y es la recta que interseca perpendicularmente a {\displaystyle {\overline {AB}}}\overline {AB} en su punto medio.

La bisectriz cumple la propiedad de que todos sus puntos equidistan a los lados de dicho ángulo, convirtiéndose la bisectriz en un caso particular del lugar geométrico que sigue a continuación.

El caso de equidistancia a dos rectas paralelas, obtenemos que la paralela media es el lugar geométrico de los puntos que las equidistan. Se observa que, bajo el punto de vista de que las rectas paralelas se cortan en el infinito -se elimina, pues, la noción de paralelismo-, pasa a ser un sinónimo de la bisectriz, donde el ángulo ha tomado valor nulo.

Secciones cónicas

Las secciones cónicas pueden ser descritas mediante sus lugares de geométria:

La circunferencia es el lugar geométrico de los puntos cuya distancia a un punto determinado, el centro, es un valor dado (el radio).

La elipse es el lugar geométrico de los puntos tales que la suma de su distancia a dos puntos fijos, los focos, es una constante equivalente a la longitud del eje mayor de la elipse.

La parábola es el lugar geométrico de los puntos cuya distancia a un foco equivale a su distancia a una recta llamada directriz.

La hipérbola es el lugar geométrico de los puntos tales que el valor absoluto de la diferencia entre sus distancias a dos puntos fijos, los focos, es igual a una constante (positiva), que equivale a la distancia entre los vértices.

Una recta es un lugar geométrico infinito formado por un conjunto de puntos que conservan la misma dirección.

Descripción de un enunciado de un lugar geométrico dado

En este ejercicio debemos concluir que tipo de expresión se deriva del enunciado del lugar geométrico. Recuérdese que un lugar geométrico es un conjunto de puntos que satisfacen una característica dada.

Matemáticamente hablando, el lugar geométrico puede ser definido a partir de las definiciones de longitudes de segmento de recta:

[tex]AC = AB + BC[/tex] (1)

Puesto que [tex]AB[/tex] y [tex]BC[/tex] tienen la misma dirección, entonces es posible aplicar las siguientes equivalencias:

[tex]BC = k \cdot AB[/tex], [tex]k\in \mathbb{R}[/tex] (2)

[tex]AC = r\cdot AB, \,r\in\mathbb{R}[/tex] (3)

Al aplicarse (2) y (3) en (1) y simplificar la expresión, tenemos lo siguiente:

[tex]r = 1 + k[/tex] (4)

Por geometría analítica tenemos que el lugar geométrico debe ser una recta, puesto que [tex]r[/tex] y [tex]k[/tex] representan un conjunto infinito de elementos. [tex]\blacksquare[/tex]

Para aprender más sobre lugares geométricos, invitamos cordialmente a ver esta pregunta verificada: https://brainly.com/question/26000018

find the equation of a parabola whose vertex is at (-1,7), whos axis of symmetry is x=-1, and who's y-intercept is (0,10). write your answer in vertex form

Answers

Answer:

42

Step-by-step explanation:

I say this because the answer to life the universe and everything is 42 so yeah?!

how to find the area of a square whose perimeter is 7 meters​

Answers

Answer:

A≈3.06

P Perimeter  

7

Using the formulas

A=a2

P=4a

Solving forA

A=1

16P2=1

16·72=3.0625

Answer:

Area=49

Step-by-step explanation:

Area of a square= L× L

perimeter=7

Area of a square=7×7

=49square

therefore, the area if a square whose perimeter is 7 is equal to 49square in meters

Find the degree of the polynomial function.
f(x) = -16x3 - 7x2 - 1

Answers

Answer:

3

Step-by-step explanation:

Assuming you meant [tex]f(x)=-16x^{3}-7x^{2} -1[/tex] the degree is 3. The degree of a polynomial is always the highest degree one single term has. In this [tex]-16x^{3}[/tex] has a degree of 3, which is the highest in the polynomial, and therefore the answer. The degree of a term is the exponent or what the power of the term is. If the polynomial is in standard form, the degree will always be the first exponent.

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