What is the solution to this system of equations?

x − 2y = 15
2x + 4y = -18

What Is The Solution To This System Of Equations? X 2y = 152x + 4y = -18

Answers

Answer 1

Step-by-step explanation:

just substitute them in the x and y variables.

if the answer is equal to the answers on the other side of the equation than it correct

Answer 2

Answer:

x=3 , y=-6

Step-by-step explanation:

 x − 2y = 15 is one of the problems. so x in this problem stays as 3, and double of y is -12, so if we take 3 - (-12) or more simply, 3+ 12, which is 15.

2x + 4y = -18  is the other problem. so x is doubled making x equal to 6, and four times y, or -6, is equal to -24 . So bringing the while thing together, 6 + -24, or put more simply, 6-24=-18, making the answer

x=3 , y=6


Related Questions

Which expression is equal to
[tex]\frac{7}{8}[/tex]?
A.7 divided by 8
B.8x7
C.8 divided by 7
D. 7x8

Answers

Answer: A

Step by step explanation:

What is the value of y?
88

need help

Answers

Answer:

The answer to your question is 44 degrees.  

Step-by-step explanation:

The sum of 333 consecutive odd numbers is 183183183.
What is the second number in this sequence?

Answers

The second number is 8 cause it’s the second one

Answer: if this is khan academy the answer is 61

Step-by-step explanation:

Can someone explain?

Answers

87
Because the ratio is 3:7
So we plug in 203 for 7
3:7=?:203
7 goes into 203 29 times
29*3 is
87
it is 87! you put 7 into 203 29 times :))

the dimensions of a rectangular plot of land are 28.3m by 53.7m. Find
1) the perimeter of the land, correct to the nearest 10
2) the area of grass needed to fill up the entire plot of land, correct to the nearest 100m^2


also show the steps​

Answers

Answer:

1. Answer is 160 m

2. Answer is 1500 m²

Step-by-step explanation:

perimeter = 2(l+b)

which implies 2( 28.3 + 53.7) m = 160 m

Area is length× breadth

which implies 28.3× 53.7 = 1500 m²

Please mark me brainliest

find equation of the line PLEASE HELP!

Answers

Answer:

y=1/2x-3

Step-by-step explanation:

Hope this helps :) Have a great day!!!

The answer is 0.5x-3=y

PLEASE I NEED DESPERATE HELP

Answers

OK ILL HELP U I PROMISE

What is the unit rate for meters per second if a car travels 374 meters in 17 seconds?

Answers

Answer:

22 meters per second

Step-by-step explanation:

If a car is going 374 meters in 17 seconds then you divide 374/17 claiming that the car is going 22 meters every second.

4x + 3z for x=7 and z=2​

Answers

The answer is 36!!! Hope it helps

Answer:

34

Step-by-step explanation:

plug 7 into 4x

plug 2 into 3z

do the math so...

4 X 7 =28

2 X 3 = 6

add 28 + 6 = 34

What is the range of the graphed function?
{x |1< x < 5)
{y |1 < y <5}
{x | x is a real number}
{y|y is a real number}

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Given the expression

[tex]V=\sqrt[3]{x-1}+3[/tex]

Determining the domain:

We know that the domain of a function is the set of input values for which the function is defined.

From the given graph, it is clear that the function has no undefined points nor domain constraints.

Therefore, the domain is:

{x | x is a real number}

In other words:

[tex]\mathrm{Domain\:of\:}\:\sqrt[3]{x-1}+3\::\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:<x<\infty \\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}[/tex]

Determining the range:

We know that the range of a function is the set of values of the dependent variable for which a function is defined.

It is clear from the graph that the range can be any real number.

i.e. the range is:

{y|y is a real number}

In other words,

[tex]\mathrm{Range\:of\:}\sqrt[3]{x-1}+3:\quad \begin{bmatrix}\mathrm{Solution:}\:&\:-\infty \:<f\left(x\right)<\infty \\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}[/tex]

800,000,000,000 + 20,000,000,000 + 3,000,000,000 + 50,000,000 + 4,000,000 + 600,000 + 50,000 + 8,000 + 700 + 80 + 6

Write the standard form of the number shown above.

Answers

Answer:

823,546,580,786

Step-by-step explanation:

If you look at the place values, that will help you determine the standard form. Hope this helps!

2. If the same ball is dropped from 10 feet and is caught exactly at the highest point after the 25th bounce, what is the
total distance traveled by the ball? Use what you learned from the last problem.
1-

Answers

In linear equation, 1.05 feet  the total distance traveled by the ball.

What are a definition and an example of a linear equation?

A linear equation with one variable is one that contains just one variable. It has the formula Ax + B = 0, with A and B being any two real numbers and x being an ambiguous variable with only one possible value. One such linear equation in one variable is 9x + 78 = 18.

dropped from 10 feet and caught at highest

So ,   10 / 9 = 1

 h = v² / 29  = 0.05 feet

  1 = 0.05 = 1.05 feet

Learn more about linear equation

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Luke rides his bike to his aunt's house. He travels 10 mi/h. Because it starts to rain, Luke's aunt drives him home in a car traveling at 25 mi/h. It takes Luke 1.5 h longer to get to his aunt's house than to return home. How many hours did it take Luke to ride to his aunt's house?

Answers

Answer:

2.5 hours

Step-by-step explanation:

Let t = time in hours for reach friend's house

(t-1.5) = time for friend to drive her home

:

Both trips are the same distance, Write a distance equation from this fact:

Distance = speed * time

Drive distance = Bike distance

Equation-

step1)   25 (t-1.5) = 10t          (here u multiply 25 by t and 25 by 1.5)

step2)  25t - 37.5 = 10t        (move 37.5)          

step3)  25t - 10t = +37.5      (subtract 25t from 10t)

step4)  15t = 37.5                 (divide 37.5 by 15)

step5)  t = 2.5                     (time it took Luke to reach his aunt's house)

a student earned a grade of 80% on a math test that had 20 problems how many problems on this test did the student answer correctly

Answers

Answer:

16

Step-by-step explanation:

To find 80% of 20, multiply .80 x 20

.80×20 = 16

This is how you multiply percentages--put the decimal point 2 places to the left, then multiply.  In this case, you're looking at 80%, so move the decimal point two places to the left

80.0 becomes .80

Then multiply that by the number you're trying to find the percentage of

another fraction operation, what is 1/4 divide by 1/4

Answers

answer

624/10000 or 39/625

Answer:

The answer is 1

:D

Step-by-step explanation:

1/4 ÷ 1/4 =  1/4 ÷ 4/1 (flip the recipocal) = 1


Suppose that in 8 minutes, 64 gallons of water came out of a pipe.
What was the rate in gallons per minute?
gallons per minute

Answers

Answer:

8 gallons/minute

Step-by-step explanation:

8 minutes= 64 gallons

1 mintes = x

8x= 64 gallons

x=8 gallons

8 gallons/minute

Simplify the following expression: (12x – 7) + (7x + 9)
A) 19x – 2
B) 5x+ 16
C) 5x – 16
D) 19x + 2

Answers

Answer:

D.

Step-by-step explanation:

12x + 7x = 19x

-7 + +9 = 2

Answer:

d

Step-by-step explanation:

please help I need to get school work done before 3​

Answers

1-distributed property
2.Multiplication
3.addition
4.Divison
5.Sum

What is the frequency of (x) = 4 sin(6 π x) +1

Answers

Answer:

Frequency is 3

Step-by-step explanation:

A sine function repeats in periods and it's frequency can be gotten using:

y(x) = sin(2πfx) where f is the frequency

We are given x = 4sin(6πx) + 1

This can be rewritten as: x = 4sin(3*2πx) + 1

Therefore, our f = 3.

Hence frequency of the sine function is 3.

I need the answer to 26. And 27. Please

Answers

Answer:

Below in bold.

Step-by-step explanation:

26.

First convert each mixed number to an improper fraction:

-12 2/3 = -38/3

- 1 1/9 = -10/9

-38/3 = -10/9 * y

y = -38/3 / -10/9

y = -38/3 * -9/10

  = -38 * -3 / 10

  = 114/10

  = 57/5

  = 11 2/5.

27,

1 5/7 = 1 13/14 a

12/7 = 27/14 a

a = 12/7 / 27/14

  =  12/7 * 14/27

  = 24/27

  = 8/9.

 

Solve this equation 2/3 x - = x - 1

Answers

Answer:

X=1/7

Step-by-step explanation:

i need help!
number 14

Answers

Answer:

I’m gonna edit This answer give me a sec to do the work

Step-by-step explanation:

Answer:

1. One Solution

2. No Solution

3. Infinitely Many

Hope this helps :)

saleswoman earns 9% commission on all the merchandise that she sells. Last month she sold $8000 worth of merchandise. How much commission (in dollars) did she earn last month?

Answers

Answer:

8720

Step-by-step explanation:

If it's anything like compound / simple interest here's how to do it:

The multiplier for +9% is 1.09

8000 x 1.09 = 8720



8x + 3y = 13

3.x + 2y = 11

Answers

Answer:

what it means ,if there is already ans

Which could be the function graphed below?

Answers

Answer:

sqrt(x+4)

Step-by-step explanation:

the graph is sqrt(x) translated 4 to the left, so +4

The function graphed is option D. [tex]f(x) = \sqrt{(x+4)}[/tex], the function is translated 4 times horizontally to the left.

How to find the function which was used to make graph?

There are many tools we can use to find the information of the relation which was used to form the graph.

A graph contains data of which input maps to which output.

Analysis of this leads to the relations which were used to make it.

If we know that the function crosses x axis at some point, then for some polynomial functions, we have those as roots of the polynomial.

The function is translated horizontally to the left. the base function is [tex]y = \sqrt{x}[/tex].

A. f(x) [tex]\sqrt{(x-5)} + 1[/tex], the graph should be translated horizontally 5 units to the right.

It's not the case and the translated 1 unit vertically.

B. [tex]f(x) = \sqrt{(x-2)}[/tex] the graph should be translated horizontally 2 units to the right. It's not the case.

C. [tex]y = \sqrt{x}[/tex], the graph should start at x=0. It's not the case.

D. [tex]f(x) = \sqrt{(x+4)}[/tex], the function is translated 4 times horizontally to the left. So this is the case.

Therefore, the function graphed is option D. [tex]f(x) = \sqrt{(x+4)}[/tex], the function is translated 4 times horizontally to the left.

Learn more about finding the graphed function here:

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Anybody have unwanted pets in adopt me? my only pet isn't for trade​

Answers

Tip: Try taking care of, that pet and make more money to buy eggs to trade or hatch and thats an easy way to get rich if you don't have robux

Step-by-step explanation:

No, sorry. But I have a tip/hack for everyone! (I don't know if it still works)! Get 3 cracked eggs, and 1 royal egg... take care of them all until their last need. Hatch your cracked eggs first, THEN the royal egg last ... there should be a legendary in the royale egg! I tried this two times and I got a legendary each time! <3

Tropical Storm Zeta will bring 0.36 in. of rain to New Orleans. Which fraction is equivalent to this amount of rain in inches?

Answers

Answer:

36/100

Step-by-step explanation:

help pls Ix would really appreciate

Answers

Answer:

B

Step-by-step explanation:

g(2)=-7 because -(2)-5=-7

f(-7)=-18 because 2(-7)-4=-18

The graph above shows the costs of two phone plans. How many minutes does a person need to call each month so that Plan B is the less expensive plan to use?

A. Less than 10 minutes

B. More than 10 minutes but less than 20 minutes

C. More than 30 minutes but less than 40

D. More than 40 minutes

Answers

Answer:

uhm, i need this answer also

Step-by-step explanation:

did you ever get the answer ? if so could you be kind enough to give it to me pleasee

ABCD and CDEF are two parallelograms
constructed on both sides of (CD).
Prove that ABFE is a parallelogram.​

Answers

Answer: ABFE is a parallelogram

Step-by-step explanation: If ABCD uses the same angles (AB) as ABFE does this can only mean that they are equal, therefore they are both parallelograms

Hope this Helps :)

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