Solve the system by substitution.
- 8x + y = -32
- 3x – 10 = y
(,)

Answers

Answer 1

Answer:

[tex]x=2,\:y=-16[/tex]

Step-by-step explanation:

[tex]\begin{bmatrix}-8x+y=-32\\ -3x-10=y\end{bmatrix}\\\\\mathrm{Isolate}\:x\:\mathrm{for}\:-8x+y=-32:\quad x=-\frac{-32-y}{8}\\\\\mathrm{Subsititute\:}x=-\frac{-32-y}{8}\\\begin{bmatrix}-3\left(-\frac{-32-y}{8}\right)-10=y\end{bmatrix}\\\\Simplify\\\begin{bmatrix}\frac{3\left(-32-y\right)}{8}-10=y\end{bmatrix}\\\\\mathrm{Isolate}\:y\:\mathrm{for}\:\frac{3\left(-32-y\right)}{8}-10=y:\quad y=-16\\\\\mathrm{For\:}x=-\frac{-32-y}{8}\\\\\mathrm{Subsititute\:}y=-16\\x=-\frac{-32-\left(-16\right)}{8}\\[/tex]

[tex]-\frac{-32-\left(-16\right)}{8}=2\\x=2\\x=2,\:y=-16[/tex]

Answer 2

Answer:

x = 2

y = -16

Step-by-step explanation:

Substitute value of y, -3x - 10 in the equation-8x + y = -32

-8x + (-3x - 10) = -32

-8x - 3x - 10 = -32

-11x - 10 = -32

-11x = -32 + 10

-11x = -22

Divide both sides by coefficient of x which is -11

x = 2

Substitute value of x, 2, in the equation-3x - 10 = y

(-3)2 - 10 = y

-6 - 10 = y

y = -16


Related Questions

Scott made $169 for 13 hours of work at the same rate how much would he make for five hours of work

Answers

Answer:

$65

Step-by-step explanation:

169 ÷ 13 = 13

13 × 5 = 65

write .48 as a fraction in simplest form

Answers

Answer:

12/25

Step-by-step explanation:

0.48 is read as "forty-eight hundredths," so we can write it as a fraction as

48/100.

Since both 48 and 100 have a common factor, we can reduce the fraction.

48 and 100 are both divisible by 4.

48/100 = 12/25

There are no common factors of 12 and 25, so 12/25 is the answer.

Answer:

12/25

Step-by-step explanation:

48/100 Divide by 2

24/50 Divide by 2 again

12/25 Can not be further simplified.

I hoped this helped you

tell me the integers between this:​

Answers

Answer:

[tex]\huge\boxed{-2,-1,0,1}[/tex]

Step-by-step explanation:

The order of integers from -3 to 2 is:

-3 ⇒ -2 ⇒ -1 ⇒ 0 ⇒ 1 ⇒ 2

So, the integers between -3 and 2 are:

=> -2,-1,0 and 1

Leticia invests $200 at 5% interest. If y represents the amount of money after x time periods, which describes the graph of the exponential function relating time and money? The initial value of the graph is 200. The graph increases by a factor of 1.05 per 1 unit increase in time. The initial value of the graph is 200. The graph increases by a factor of 5 per 1 unit increase in time. The initial value of the graph is 500. The graph increases by a factor of 2 per 1 unit increase in time. The initial value of the graph is 500. The graph increases by a factor of 1.02 per 1 unit increase in time.

Answers

Answer:

A. The initial value of the graph is 200. The graph increases by a factor of 1.05 per 1 unit increase in time.

Hope this helps!

Step-by-step explanation:

The initial value of the graph is 200. The graph increases by a factor of 1.05 per 1 unit increase in time the graph of the exponential function relate to time and money.

Given that,

Leticia invests $200 at 5% interest.

If y represents the amount of money after x time periods.

We have to determine,

Which describes the graph of the exponential function relating time and money?

According to the question,

The graph represents the exponential function relating time and money.

Where y represents the amount of money after x time periods.

After 1 period the amount of money is,

[tex]\rm f(x) = 200 + 200\left(\dfrac{5}{100}\right)\\\\f(x) = 200(1+0.5)\\\\f(x)= 200(1.5)\\\\[/tex]

After 2 periods the amount is,

[tex]\rm f(x) = 200(1.5) \times (1.5)\\\\f(x) = 200. (1.5)^2[/tex]

After 3 periods the amount is,

[tex]\rm f(x) = 200(1.5)^2 \times (1.5)\\\\f(x) = 200. (1.5)^3[/tex]

Therefore,

The amount after x period is,

[tex]\rm f(x) = 200(1.5)^x[/tex]

The initial value is when x = 0,

[tex]\rm y = 200 (1.05)^0 \\\\y = 200\times 1\\\\y = 200[/tex]

And the increasing factor is 1.05 because any value is the previous one times 1.05.

Hence, The initial value of the graph is 200. The graph increases by a factor of 1.05 per 1 unit increase in time the graph of the exponential function relate to time and money.

For more details refer to the link given below.

https://brainly.com/question/17407467

Seela rented a raft from River Rafter's Inc. She paid $100
to rent the raft and $25 for each hour. Martin rented a
raft from Oscar's Outdoor Shop. He paid $50 to rent the
raft and $35 per hour. For what number of hours will
both rafting companies charge the same amount?

Answers

Answer:

she paid $125 while he paid $85

Step-by-step explanation:

. A cylinder has a radius of 7 cm and a height of 12 cm. Calculate the total surface area. (Take π = 22/7)

Answers

Answer:

154cm^2

Step-by-step explanation:

Area of circle= pi×r^2

= 22/7 × (7cm)^2

= 22/7 × 49cm^2

= 154cm^2

hey please help, thank you!​

Answers

The answer to the question is C
For this question the answer is c

find the additive inverse of 1/2 + 1/6 + 1/12​

Answers

Answer:

3/4

Step-by-step explanation:

 

Which equation models this relationship? Help plz

Answers

Answer:

Hey there!

t=5d.

This means that for every hour she walks, she will walk five miles.

Let me know if this helps :)

Two rays that intersect at a right angle are best described as which of the
following?
A. Parallel rays
B. Perpendicular rays
C. Skew rays
D. Intersecting rays

Answers

Answer:

B. Perpendicular rays

Step-by-step explanation:

Definition Perpendicular: Perpendicular lines, rays, or segments intersect at right angles. If lines, rays, or segments are perpendicular, then they are right angles. If lines, rays, or segments intersect. at right angles, then they are. perpendicular.

Hope this Helps

The rays that intersect at a right angle are perpendicular rays option (B) is correct.

What is a perpendicular line?

Lines that intersect at a right angle are named perpendicular lines. Lines that are always the same distance apart from each other are known as parallel lines.

As we know,

From the definition, the perpendicular lines are the lines that intersect at right-angle or 90 degrees.

Two rays that intersect at a right angle are perpendicular rays.

Thus, the rays that intersect at a right angle are perpendicular rays option (B) is correct.

Learn more about the perpendicular line here:

brainly.com/question/18271653

#SPJ2

Solve the equation: only write the number is the box
2( 5x+2)=54

Answers

Answer:

x = 5

Step-by-step explanation:

Step 1:

2 (5x + 2) = 54

Step 2:

10x + 4 = 54

Step 3:

10x = 50

Answer:

x = 5

Hope This Helps :)

Answer:

x = 5

Step-by-step explanation:

2(5x+2)=54 (distribute)

10x+4=54 (subtract the 4 on both sides)

     -4   -4

10x = 50 (divide 10 on both sides)

10      10

x = 5

A boat is being pulled into a dock with a rope attached to the boat at water level. When the boat is 12 feet from the dock, the length of the rope form the boat to the dock is 3 feet longer than twice the height of the dock above the water. Find the height of the dock.

Answers

Given :

A boat is being pulled into a dock with a rope attached to the boat at water level. When the boat is 12 feet from the dock, the length of the rope form the boat to the dock is 3 feet longer than twice the height of the dock above the water.

To Find :

The height of the dock.

Solution :

This will make a right angle triangle as given in link below .

Now , applying Pythagoras theorem :

[tex](2h+3)^2=h^2+12^2\\\\4h^2+9h+9=h^2+144\\\\h^2+4h-45=0\\\\(h-5)(h+9)=0[/tex]

Now , h = 5 or h = -9 .

Now , height cannot be negative .

So , height of the dock is 5 ft .

Hence , this is the required solution .

The floors in an apartment building belong to different ____.

a.
rays
b.
segments
c.
planes
d.
points

Answers

Answer:

B. Segments

Step-by-step explanation:

"...divide (something) into separate parts or sections."

Definition of Segment

Hope it helps! :3

Answer: it would have been segment or planes Im not 100% sure

A container holds 2/3 gallon of apple juice. If four people from the cross-country track team share the juice equally, how much juice will each team member get?

Answers

Each member will receive 1/4 of 2/3. That is equal to 1/6 of a gallon, which is what each member will receive.

Answer:

You would DIVIDE to solve this problem.

each runner will

get 1/6 gallon of apple juice

Step-by-step explanation:

A(-7,3) B(4,5) the distance

Answers

Answer:

d= 5√5

Step-by-step explanation:

[tex]d =:\quad \sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}\\(-7,3)=(x_1,y_1)\\(4,5)=(x_2,y_2)\\\\d = \sqrt{(4-(-7))^2+(5-3)^2}\\\\d = \sqrt{(4+7)^2+(5-3)^2}\\\\d = \sqrt{(11)^2+(2)^2}\\\\d = \sqrt{121+4}\\\\d = \sqrt{125}\\\\d =5 \sqrt{5}[/tex]

Please Help me with this Problem

Answers

Answer:

D

Step-by-step explanation:

When y = 0 then we are on the x- axis thus x = - 2 and x = 3 are zeros

The corresponding factors are (x + 2) and (x - 3)

The corresponding equation is the product of the factors, that is

y = (x + 2)(x - 3) ← expand using FOIL

y = x² - x - 6 → D

if 12 people can finish a job by 5 days how many days will be required finish the same job by 10 people

Answers

Answer:

4

Step-by-step explanation:

12p=5d

1p=5/12

10p=4.1666

≈4 days

AYUDAA es para hoyyy Un avión volaba a 14.800 metros de altura . Primero , bajo a 23.000 decímetros y luego 54 hectometros más a qué altura en kilómetros vuela ahora ? EN ESPAÑOL LA RESPUESTA POR FAVOR Gracias

Answers

Answer:

7.1 km or 7.1 kilometer

Step-by-step explanation:

Esta pregunta se resuelve mediante la conversión de unidades SI. Nuestra respuesta final será en kilómetros, por lo tanto, estamos convirtiendo todos los valores dados a kilómetros.

De la pregunta, tenemos la siguiente información:

Altura de vuelo actual del avión = 14.800 metros

1 metro = 0.001 kilómetro

14,800 metros =

14,800 × 0.001

= 14.8 kilómetros

Avión que descendió primero = 23.000 decímetros

1 decímetro = 0.0001 kilómetro

23,000 decímetros =

23,000 × 0.0001 kilómetro

= 2.3 kilómetros

Descendió la segunda vez = 54 hectómetros más

1 hectómetro = 0.1 kilómetro

54 hectómetros =

54 × 0.1 kilómetro

= 5.4 kilómetros

Por lo tanto, la altura en kilómetros que vuela el avión ahora se calcula como

14.8 km - 2.3 km - 5.4 km

= 14.8 km - (2.3 km + 5.4 km)

= 14.8 kilometros - 7.7 kilometros

= 7.1 kilometros

Por lo tanto, el avión vuela actualmente a 7.1 km o 7.1 kilómetros.

Got another question for you guys! What is 12.5 x 4.2?

Answers

Answer:

52.5

Step-by-step explanation:

What is this? k/8-5≥-6

Answers

Answer:

k≥-8

Step-by-step explanation:

tell if is: < or > ​

Answers

Answer:

-9 < -1

21/5 < 17/4

Answer:

-9 < -1

21/5 < 17/4

Step-by-step explanation:

A) when a number isnegitv ethe "smaller" number has more value. You would rather loose one doller than 9, right?

B) 21/5 = 4.20

17/4 = 4.25

and .25 os bigger than .20

Which function has an inverse that is also a function? {(–1, –2), (0, 4), (1, 3), (5, 14), (7, 4)} {(–1, 2), (0, 4), (1, 5), (5, 4), (7, 2)} {(–1, 3), (0, 4), (1, 14), (5, 6), (7, 2)} {(–1, 4), (0, 4), (1, 2), (5, 3), (7, 1)}

Answers

Answer:

C. {(–1, 3), (0, 4), (1, 14), (5, 6), (7, 2)}

Step-by-step explanation:

I just did the quiz. Basically all you do is switch the x and y values for each coordinate pair in order to see if it would pass the line test. If it has double X values, it is not a function with an inverse function.

Solve for x 5x - 5 = 5

Answers

Polynomial equation solver

5x - 5 = 5

Standard form:

5x − 10 = 0

Factorization:

5(x − 2) = 0

Solutions:

x = 10

5

= 2

The Zoo charges $14 per visit for non-members. To become a member of the Zoo you will be charged a $36 one-time fee $2 per visit. At what number of visits will a member and non-member pay the same amount?

Answers

Answer:

7

Step-by-step explanation:

You divide the number of visits and the price. 14÷2=7

0.75 into a fraction

Answers

Answer:

the answer is 75/100 simplify into 3/4

Step-by-step explanation:

the answer is seventy five out of a hundred then simplify getting your answer as 3/4

what divided by 3 is -2

Answers

Answer:

-1.5

Step-by-step explanation:easy

HELP HELP HELP HELP HELPPPP!!

Answers

Answer:

1. whole number 2. rational number 3. integer

Step-by-step explanation:

Answer:

6 = natural and whole

1/64 = rational

-2 = integer

Step-by-step explanation:

Números multiplicados que den 10?

Answers

Yeah what that person said ^^

The numbers that multiply to give 10 are -

2 x 5

5 x 2

2.5 x 4

What is multiplication?Multiplication is one of the four basic arithmetic operations, alongside addition, subtraction, and division.In math, multiply means the repeated addition of groups of equal sizes.

Given is two multiply two numbers to give 10.

The numbers that multiply to give 10, we get -

2 x 5 = 10

5 x 2 = 10

2.5 x 4 = 10

Therefore, the numbers that multiply to give 10 are -

2 x 5

5 x 2

2.5 x 4

To solve more questions on multiplication, visit the link below -

https://brainly.com/question/620034

#SPJ2

{Question in english is given below -

Multiplied numbers that give 10}

Answer the question please for me!!!

Answers

Answer:

4

Step-by-step explanation:

Appreciate any help ^^ completely lost

Answers

Answer:

B

Step-by-step explanation:

4x²/2 √x^4/4x²

2x²√x²/4  ( equal to C)

4x²/2(x²/2x)

2x²(x²/2x)=

2x^4/2x =x³ ( equal to A) or √x^6 ( equal to D) also E x²√x²=x^3

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