If x = 5y - 1 and 3x + 5y = -43, what is the value of y?

Answers

Answer 1

Answer:

y is the value of 1

Step-by-step explanation:

no need for one

Answer 2

Answer:

y = - 2

Step-by-step explanation:

Substitute x = 5y - 1 into the other equation

3(5y - 1) + 5y = - 43 ← distribute parenthesis and simplify left side

15y - 3 + 5y = - 43

20y - 3 = - 43 ( add 3 to both sides )

20y = - 40 ( divide both sides by 20 )

y = - 2


Related Questions

(Pythagorean theorem) find the missing side length. Round to the nearest hundredth (show steps)

Answers

Answer:

5.39

Step-by-step explanation:

To find the third side (let's call it x) you plug the side lengths given into the Pythagorean theorem to get:

5² + 2² = x²

Which, simplified, is:

25 + 4 = x²

And to get x, you do:

x=√(29)

So, if you want it to the nearest hundredth, it is 5.39.

square root of 29.00

Step-by-step explanation:

5square +2square=29 to the nearest hundredth 29.00 .but there is no square root of 29

The system of equations below form a line and a parabola. Select all possible solutions to this system from the answer choices below.
2+y=5
x^2+ y = 11


Answers

Answer:

no answer choices shown but solution

would be [-2.8, -∞] and [2.83, ∞]

Step-by-step explanation:

What is the value of the first term in an=n+6?​

Answers

the first term would be 7.

If the red marker is red why isn’t the blue marker blue when it rains...?

Answers

Answer:

Yes.

Explanation:

Is - 1/2 equivalent to 1/-2

Answers

YES

- 1/2 is equivalent to 1/-2

The detailed answer is in the image attached.

Hope it helps you.....

Please mark as Brainlliest!!!

Which expression is equivalent to 4(6 - 2x) ?

Answers

Answer:

Option A

Step-by-step explanation:

[tex]4(6-2x)\\\rule{150}{0.5}\\\rightarrow ((6 * 4) ( -2x*4)) \leftarrow \text{Distribute the '4' into the content in the parenthesis.}\\\\\\\\\rightarrow 6 * 4 = 24\\\\\rightarrow -2x * 4 = -8x\\\\\\\\\rightarrow 4(6-2x) = \boxed{24 - 8x}[/tex]

Hope this helps.

Sup!! can you answer this?
also answer fast kid

Answers

Answer:

try d) 17 m

sorry if it's wrong

Find the distance between​

Answers

Answer:

minus 15 by 4

Step-by-step explanation:

minus 9 by 4 minus 3 by 2 lcm then add

help me please on my math I need All of this FACTORS and the LCM​

Answers

Answer:

the LCM is :

1. 144

2.40

3.870

4. 63

5.216

6.150

7. 112

8.162

9. 96

10. 40

plz help look at the pic below

Answers

Answer:

You can use the exponential rule where

[tex](n^x)^y=n^{xy}[/tex]

Therefore,

[tex](a^3)^{-2}=a^{3*(-2)}=a^{-6}[/tex]

[tex]\\ \rm\leadsto (a^3)^{-2}[/tex]

(a^m)^n=a^mn

[tex]\\ \rm\leadsto a^{-6}[/tex]

[tex]\\ \rm\leadsto \dfrac{1}{a^6}[/tex]

what is the hcf of 18 27 and 81 by prime factorization​

Answers

Answer:

9

Step-by-step explanation:

It's been a while since i've dealt with prime factors hopefully this is correct.

Annelise buys a car that is one year old for $13600.
The value of this car has reduced by 15% of the value when it was new.
Calculate the value of the car when it was new.

Answers

Answer:

$16000

Step-by-step explanation:

Initial value is x, current value is $13600, price reduction by 15%.

x - 15% = 13600x - 0.15x = 136000.85x = 13600x = 13600/0.85x = 16000

Find the greatest common factor of 21 and 46.

Answers

Answer:

1

Step-by-step explanation:

Hope this helps! Have a great day ahead. Tell me if I'm wrong :) Stay Safe <3

Answer:

1

Step-by-step explanation:

they are both co-prime (numbers that have a common factor of only 1)

Solve pls brainliest

Answers

Answer:

$180

Step-by-step explanation:

simple interest means that interest is paid every year on the original $200

To find 3% of 200, you multiply 200(.03) = $80.

$200(3)=$60

Since the interest is the same, 3(60) = $180

Hope this helps

The owner of a bookstore buys used books from customers for $1.50 each. The owner then resells the used books
for 400% of the amount he paid for them.
What is the price of a used book in this bookstore?

need the answer

Answers

The price of a used book in the bookstore after the percentage increase in its price is $7.50.

What are percentages?

Percentage can be described as the fraction out of an amount that is usually expressed as a number out of hundred. Percentages are represented with this sign - %.

What is the price of the used book?

Price = 1.50 x ( 1 + 4)

1.5 x 5 = $7.50

To learn more about percentages, please check: https://brainly.com/question/25764815

Answer:

j 6.00

Step-by-step explanation:

i took the test hope this helps good luck

If the area of a rectangle is x^2+5x+6, and x represents 15 cm, what is the perimeter of the rectangle?

Answers

Answer:

To calculate the length and width of a rectangle first, calculate the value of width 'w' by using the area of rectangle formula that is, 'w = A/l'.

Step-by-step explanation:

Your 12 turkeys drink 7.6 L of water a day. How
much water does one turkey drink per day?

Answers

find the unit rate by setting up a proportion

A cab company charges a $3 boarding rate in addition to its meter which is $2 for every mile. What is the equation?
Please give an actual answer

Answers

3+2(x) x is for miles

find the volume of the prism

Answers

Answer:

96ft^3 (The third option)

Step-by-step explanation:

The volume of a prism is derived by the formula length*width*height. This is also known as the base*height. The base here is 6*4, but since it's a triangle, we divide by 2 to get 12 as the base. the height is 8, so 12*8=96 ft^3. Hope this helps!

25 points! I really need some help.

Answers

Answer:

c ≤  4 1/3  

Step-by-step explanation:

10.25 + 2.25c ≤ 20    solve the equation if there was an = in the equation

10.25 + 2.25c = 20

-10.25            = -10.25

          2.25c = 9.75

                   c = 9.75 ÷2.25

                    c = 4.3333

                       [tex]c = 4\frac{1}{3}[/tex]

Now replace the ≤ into the equation:  

c ≤  4 1/3        

the coordinates of the point of intersection of lines px + y = 3 and x + 2y = q are (2, -3). find the value of p and q

Answers

Answer:

p = 3 and q = - 4

Step-by-step explanation:

Substitute the coordinates of the solution (2, - 3 ) into the equations and solve for p and q

px + y = 3 , then

2p - 3 = 3 ( add 3 to both sides )

2p = 6 ( divide both sides by 2 )

p = 3

and

x + 2y = q , then

2 + 2(- 3) = q

2 - 6 = q , so

q = - 4

What is the approximate area of a circle with a diameter of 10in

Answers

Answer:

A≈78.54in²

Step-by-step explanation:

Can I have brainliest pls?

help me urgent thankyouu

Answers

Answer:

The answer is B.

Step-by-step explanation:

0.0605

Find the slope. simplify if needed.

(-10,5) and (2, -3)

Answers

-2/3 is the slope , hope this helps

find the equation of the line passing through (3,-6) with the gradient of -1/2​

Answers

Answer:

2y+x+9=0

Step-by-step explanation:

eqn is given by

[tex]m = \frac{y - y1}{x - x1} [/tex]

given

[tex] - \frac{1}{2} \: as \: m[/tex]

and

[tex]{3 \: and \: - 6} \: as \: x \: and \: y \: respectively[/tex]

subtitute values into the formula

[tex] - \frac{1}{2} = \frac{y - - 6}{x - 3} [/tex]

cross multiply giving

[tex] - 1{x - 3}= 2{y + 6[/tex]

[tex] - x + 3 = 2y + 12 \\ 2y + 12 + x - 3 = 0 \\ 2y + x + 9 = 0[/tex]

How do I know if the point will be above the line

Answers

Answer: Para demostrar cómo calcular esto, digamos que tenemos una línea que pasa por un punto p con dirección v, es decir, parametrizada como \ gamma (t) = \ mathbf {p} + t \ mathbf {v}.

Sea L una rotación de 90 grados hacia la izquierda. Entonces, un punto x está a la izquierda de su línea si \ langle \ mathbf {x} - \ mathbf {p}, L \ mathbf {v} \ rangle es positivo, a la derecha si es negativo, y en la misma línea si es cero.

Respuesta 2:

Una línea en un plano no tiene un lado preferido, por lo que sin algo que distinga los lados de una línea, no puede haber una cuestión de qué lado de una línea se encuentra un punto.

Sin embargo, puede preguntar si dos puntos en ese plano, no en la línea, se encuentran en el mismo lado de la línea. Si el segmento de línea entre esos dos puntos se cruza con la línea, entonces se encuentran en lados opuestos de la línea; de lo contrario, se encuentran en el mismo lado de la línea.

Respuesta 3:

Trace la línea en una gráfica, digamos x = y. Cualquier coordenada de un punto donde xey son =, entonces se encuentra en la línea (17,17).

Si x es mayor que y, nuestro punto estará por debajo de la línea (3,2).

Si y es mayor que x, el punto estará por encima de la línea (1,2).

Si su línea es y = 2x, entonces y tendría que ser mayor que 2x para estar por encima de la línea.

Nuestra comparación en este gráfico xy está por encima o por debajo. Esto se debe a que generalmente hacemos referencia a nuestra línea ay =. Si lo reescribimos como x =, nuestra misma línea comparada con x sería a la izquierda o derecha de.

Step-by-step explanationNuestra comparación en este gráfico xy está por encima o por debajo. Esto se debe a que generalmente hacemos referencia a nuestra línea ay =. Si lo reescribimos como x =, nuestra misma línea comparada con x sería a la izquierda o derecha de.:

A toy rocket is launched from the ground, the equation

h= -16t^2+ 80t, models the height of the rocket h in feet at any timet

in seconds.

For which interval of time will the rocket be higher than 64 feet off the

ground?

Answers

Answer:

Step-by-step explanation:

We can graph the function and determine the points where the y value line is greater than 64 feet.  We could also solve the equation for h = 64.

Graphing:

A graph is attached.  The intersections of the line at height = 64 feet are at (1,64) and (4,64).  The first is going up and the second coming down.  The period of time the rocket is above 64 feet is from 1 to 4 seconds.

Solving:

h= -16t^2+ 80t

64 = -16t^2+ 80t

-16t^2+ 80t - 64 = 0

Solve using the quadratic formula:

We get two answers:  1 and 4 (seconds)

Answer Asap!
<3 <3 <3
Thx

Answers

Answer:

the answer is 15/17

because cosine=b/h=UV/UW=15/17

I don’t get it and I’m struggling to answer it.

Answers

If the path is 2 feet wide, you actually have 14 feet of length and 6 of width.

Multiply that together and he has 84 ft left

Find the slope of the line y=-1/4x+1

Answers

Answer:

slope is -1/4 the number before the x is the slope

Step-by-step explanation:

Answer:

The slope is -1/4

Step-by-step explanation:

The equation is written in slope intercept form

y = mx+b  where m is the slope and b is the y intercept

y = -1/4x +1

The slope is -1/4 and the y intercept is 1

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