Solve the system by substitution 2x-y=39 and -6y=x

Answers

Answer 1

Answer:

x=18,y=-3

Step-by-step explanation:

Answer 2
Plug in -6y for x
2(-6y) - y = 39
-12y - y = 39
-13y = 39, y = -3
Plug into second equation
-6(-3) = x, x = 18
Answer: x = 18, y = -3

Related Questions

Three guys rent a hotel room for the night. When they get to the hotel they pay the $30 fee, then go up to their room. Soon the bellhop brings up their bags and gives the lawyers back $5 because the hotel was having a special discount that weekend. So the three lawyers decide to each keep one of the $5 dollars and to give the bellhop a $2 tip. However, when they sat down to tally up their expenses for the weekend they could not explain the following details:

Each one of them had originally paid $10 (towards the initial $30), then each got back $1 which meant that they each paid $9. Then they gave the bellhop a $2 tip. HOWEVER, 3 • $9 + $2 = $29.

The guys couldn't figure out what happened to the other dollar. After all, the three paid out $30 but could only account for $29.

Can you determine what happened?

Answers

Answer:

I didnt understand but lets just say the bellhop took ot

Which number is the smallest?
33/2, 555/3, 7/1000, 100, 50/1111, 150
A. 33/2
B. 555/3
C. 100
D. 50/1111
E. 7/1000
F. 150

5/3, 6/5, .9, 1, 1.3, 7/5
A. 5/3
B. 1.3
C. 7/5
D. .9
E. 6/5
F. 1


10.34, 500/50, 10.4, 1000/100, 2000/250, 4000/400
A. 4000/400
B. 500/50
C. 10.34
D. 1000/100
E. 2000/250
F. 10.4

Answers

Answer:

E D C are the answers for the questions

If Clare earns $75 the next week from delivering newspapers and deposits it in her account, what will her account balance be then? her account balance is $-50 to start out with

Answers

Answer:

25

Step-by-step explanation:

because 75 - 50 = 25

The Clare account balance after the deposit of $75 will be $25.

What is subtraction?

To subtract in mathematics is to take something away from a group or a number of objects.

In other meaning, subtraction is a mathematical operation such that two values are going to subtract and give a resultant value.

As per the given,

The account balance initial = -$50

The amount of deposition = $75

Total amount = -$50 + $75

⇒ $25

Hence"The Clare account balance after the deposit of $75 will be $25".

For more about subtraction,

https://brainly.com/question/1927340

#SPJ2

please help i have to get this all done by tommorw

Answers

Graph the inequality by finding the boundary line, then shading the appropriate area.

I got this question wrong. My teacher said something about altitude, but I have not a clue how to do it

Answers

Answer:

cone shape and cm 3

area of shape

Step-by-step explanation:

3 cm ×8 cm

24

please follow me all friends who are watching me who made answer


What do you notice about dividing numbers with the same base?

Answers

Answer:

it's the one all the way to the right

An item has a listed price of $45. If the sales tax rate is 5%, how much is the sales tax (in dollars)?

Answers

Answer:

$42.75

Step-by-step explanation:

The whole number 24 is equivalent to ​

Answers

Answer:

24/1 please mark as brainliest

Answer: 24/1
Explanation: this would be 24/1 because when the denominator is a one whatever the top number is is a whole number.

Evaluate this expression when x is -250

-2x+400

Answers

Answer:

900

Step-by-step explanation:

-2(-250)+400

or, 500+400

=900

Please mark me as brainliest

you can now mark them as brainliest

What is the coefficient of y^3 in the expansion of (y+3) raised to the 4th power?
A. 1
B. 6
C. 4
D. 3

Answers

The answer to this problem would be 3 because a coefficient is a whole number so the coefficient would be D. 3.

Jennifer's grade on a math quiz was a 85%. There were 20 questions on the quiz.

Answers

Answer:

She got 16/20 on the test

Step-by-step explanation:

Just divide 16/20 and the answer is 80%

Which of the following may be used as reasons in a two-column proof? Select all that apply.

Answers

Answer:

definitions, theorems, postulates, properties, and "given"

Step-by-step explanation:

Definitions, theorems, postulates, properties, and statements that are given are all either assumed to be true or proven to be true, and can be cited in a two-column proof.

Quotes and opinions are not statements of fact, and cannot be used in proofs.

Find the prime factor of the number 3825.​

Answers

Answer:

the answer is 3×3×5×5×17=3825 use prime factorization

870 g of brass contains 40 percent zinic and the rest is copper.find the mass of zinic and copper in the alloy​

Answers

Step-by-step explanation:

Mass of Zinc = 870g * (40/100) = 348g.

Mass of Copper = 870g - 348g = 522g.

Mass of zinc = 40/100*870 = 348

Mass of Copper = 60/100*870 = 522

Therefore, the mass of zinic in the alloy is 348 and the mass of copper in the alloy is 522.

1-:4(x-3)=5 what is x

Answers

Answer:

x = 23

Step-by-step explanation:

1/4(x-3)=5

Multiply both sides by 4.

x - 3 = 20

Add 3 to both sides.

x = 23

the perimeter of a rectangle is (8x + 7y) feet, give two possible dimensions of the rectangle

please help ?? ​

Answers

Answer:

Two possible dimensions of the rectangle are 4x and 7/2 y.

Step-by-step explanation:

The Perimeter of a Rectangle

It's given the perimeter of a rectangle is

P = 8x + 7y

The formula to calculate the perimeter of a rectangle of dimensions L and W is:

P = 2W + 2L

Equating term by term, we can guess two possible dimensions of the rectangle:

2W = 8x

Dividing by 2:

W = 4x

And also:

2L = 7y

Dividing by 2:

L = 7/2 y

Thus, two possible dimensions of the rectangle are 4x and 7/2 y.

based on the information in the table wich of these key features is incorrect

Answers

3=0 and 6=0. You can only have one x for one y

Hi Can you help me with this math question
i will give you 20 points if you can help me

Answers

Answer:

a) all equations must have an equal sign

b) (5,15) and (6, 18)

c) don't know Cop?

d) f(p) = 3g   where 'p' is points and 'g' is goblins defeated

e) f(12) = 3(4)

Step-by-step explanation:

3(1−9a)+22a=2(2a−9)−15
i need a step by step explanation

Answers

Step-by-step explanation:

3(1-9a)+22a=2(2a-9)-15

3-27a+22a=4a-18-15

-27a+22a-4a=-18-15-3

-a=-36

a=36

Answer:

A= 4

Step-by-step explanation:

3(1-9a)+22a=2(2a-9)-15

3-27a+22a=2(2a-9)-15

3-5a=2(2a-9)-15

3-5a=4a-33

3-5a-3=4a-33-3

-5a=4a-36

-5a-4a=4a-36-4a

-9a=-36

-9a/-9 = -36/-9

A=4

2 tickets cost $14. How many tickets can you buy with $63

Answers

Answer:

9 tickets

Step-by-step explanation:

If two tickets cost 14 dollars, then each ticket will cost 7 dollars

63/7=9

You can buy 9 tickets

Answer:

You can buy about 31 tickets

Step-by-step explanation:

Write the equation 3x+2=4x²​ in standard form.
Identify the values of a,b, and c that you would use to solve the equation using the Quadratic Formula.

Answers

Answer:

Write the Equation in Standard Form 3x+2=4x^2. 3x+2=4x2 3 x + 2 = 4 x 2. To write an equation in standard form, move each term to the left side of the equation ...

Missing: 4x²​ ‎| Must include: 4x²​

Step-by-step explanation:

Write the Equation in Standard Form 3x+2=4x^2. 3x+2=4x2 3 x + 2 = 4 x 2. To write an equation in standard form, move each term to the left side of the equation ...

Missing: 4x²​ ‎| Must include: 4x²​

A grocery store sells tangerines in 25kg bags. A customer bought 4 kg of tangerines for a school party. How many bags did he buy? (2 points) A. Write a multiplication equation and division equation to represent the situation.

Answers

Answer:

x = 4/25

Step-by-step explanation

Amount of tangerines in bags sold = 25kg

If a customer bought 4kg of tangerines, the number of bags he bought is expressed as x;

4 kg = x bags

25 kg = 1 bag

Cross multiply

25 x = 4 * 1

25x = 4

Divide both sides by 25

25x/25 = 4/25

x = 4/25

Hence the required equation is x = 4/25

Answer:

So if you are in middle school like me, they are asking for an equation answer, and that equation is 4 divided by 2/5 = _ and _ x 2/5 = 4

Step-by-step explanation:

Pleaseeee helpppp !!!!!!!!! Will mark Brianliest !!!!!!!!!!!!

Answers

Answer:

X=60

Step-by-step explanation:

4/10=24/x

cross multiply

4x=240

x=240/4

x=60

I wish I could help you but im doing this so i can ask sum

The family built a house that has a length and width in a ratio of 5: 4, what is the length and width of the house if the total area of ​​two identical floors is 160m2

Answers

Answer:

I hope it will help u , please Brain -list the question

Step-by-step explanation:

As given that

L:W=5:4

L/W=5/4

L=(5/4)W

hence we also know that

Area of rectangle= L*W

As given A=160m2

putt the value of A and L=(5/4)W in above equation ,

hence      160 = (5/4)W * W

W^2 = 160*4/5

W^2 = 32*4

W^2=128

taking square root  

W= +_ 11.3  

but length can't be negative so we take positive value of W  

W=11.3 m

Now for L putt in above equation,

L=5/4 * 11.3 = 14.12 m

Find an equation for the line perpendicular to 4 x + 12 y = 96 and goes through the point ( − 3 , 4 ) . Write your answer in the form y = m x + b .

Answers

Answer:

y= 3/4x + 6.4

Step-by-step explanation:

If your teacher asks why it's so specific tell them you used desmos <3

If A = 50 degrees, B = 62 degrees, and a = 4, find b.

Round to the nearest tenth.​

Answers

Answer:  4.6

=================================================

Work Shown:

Use the law of sines

b/sin(B) = a/sin(A)

b/sin(62) = 4/sin(50)

b = sin(62)*4/sin(50)

b = 4.61042489526572

b = 4.6

Make sure your calculator is in degree mode.

PLEASE HELP ME WITH THIS QUESTION I NEEED HELP ASAPm

Answers

Answer:

one pound is 4 dollars and 12 pounds would cost 48 dollars

Which expression best estimates. -18 1/4 ÷ 2 2/3 A. 18÷3 B. -18÷3 C.-18÷(-3) D. 18÷(-3)​

Answers

Answer:

the amswer is d hope this helps

Of the 75 cars that Lindsay saw pass on the highway, 16% had an out-of-state license plate. How many had an out-of-state license plate?

Answers

Answer:

12

Step-by-step explanation:

75 * 0.16 = 12

Answer:

12 cars

Step-by-step explanation:

need some help (Geo)​

Answers

Answer:

b

Step-by-step explanation:bb

Step-by-step explanation:

Angle 6 and Angle 3 must be supplementary to show that the 2 lines are parallel (D).

Other Questions
What is the attitude of most large companies toward employees forming a union?A. A union is perceived as a threat to many companies, so employees are discouraged fromforming one.B. Most companies think that a union will boost worker morale, so they encourage workers toform one.C. Most companies are indifferent toward workers forming a union sincethey believe that unions have little or no impact on productivity or manager-employeerelations.D. Companies want workers to form a union because it actually givesmanagers more authority and power over workers.E A union cannot be legally formed in most large companies, therefore, it isn't an issue. uh guys so i forgot everything that i took in physics and now i a question, whats p=mvp stands what? How do the Ohio and US Constitutions set up the main branches of government?Include the number of branches that the governments are split into by each.List at least two duties or powers for each branch of state and federal government.Describe how the duties or powers at the state and federal levels compare with each other. A construction company is considering submitting bids for two contracts. It will cost the company \$10{,}000$10,000dollar sign, 10, comma, 000 to prepare and submit the bids, and if won, each bid would produce \$50{,}000$50,000dollar sign, 50, comma, 000 of income to the company. The company estimates that it has a 10\%10%10, percent chance of winning any given bid.Here is the probability distribution of X=X=X, equals the number of bids the company wins, and M=M=M, equals the amount of money the company profits from the bids.X=\# \text{ of bids won}X=# of bids wonX, equals, \#, start text, space, o, f, space, b, i, d, s, space, w, o, n, end text 000 111 222M=\text{profit}M=profitM, equals, start text, p, r, o, f, i, t, end text -\$10{,}000$10,000minus, dollar sign, 10, comma, 000 \$40{,}000$40,000dollar sign, 40, comma, 000 \$90{,}000$90,000dollar sign, 90, comma, 000Probability 0.810.810, point, 81 0.180.180, point, 18 0.010.010, point, 01Calculate the mean of MMM. please answer quicklygeometry reflections translation: (x, y)->(x+2, y- 1)H(-2, 4), 1(0,5), H3, 2) quick question. pls help!so should i stay up to get my homework done? or should i go to sleep since i havent gotten more that 3 hrs of sleep in 5 days (basically i havent slept)?HELPPPPPPP The demand for money curve shows that there is an inverse relationship between interest rate and A.quality of money suppliedB. Price level C. Gross domestic products D.quantity of money demanded What is the scale factor? please explain Which level of government in Oklahoma is responsible for administering local, state, and federal elections?A. municipalB. countyC. StateD. federalIll mark you brainlist how can we know whether a particular state has rule of law or not(enumerate the major indicators that we can rely on) Turn your magic onUmi she'd sayEverything you want's a dream awayAnd we are legends every dayThat's what she told himTurn your magic onTo me she'd sayEverything you want's a dream awayUnder this pressure, under this weightWe are diamondsNow I feel my heart beatingI feel my heart underneath my skinAnd I feel my heart beatingOh, you make me feelLike I'm alive againAlive againOh, you make me feelLike I'm alive againSaid, I can't go onNot in this wayI'm a dream, I die by light of dayGonna hold up half the sky and sayOh, we are omenAnd I feel my heart beatingI feel my heart underneath my skinOh, I can feel my heart beating'Cause you make me feelLike I'm alive againAlive againOh, you make me feelLike I'm alive againTurn your magic onTo me she'd sayEverything you want's a dream awayUnder this pressure, under this weightWe are diamonds, taking shapeWe are diamonds, taking shapeIf we've only got this lifeIn this adventure well then IAnd if we've only got this lifeYou get me through aliveAnd if we've only got this lifeIn this adventure well then IWanna share it with youWith youWith youI said, ohSay, ohOohOohOohOohOohOohOohOohOohOohOohOoh Hey, can you help me? Is the gravity on the moon and earth the same and why are they the same or different Write the point-slope form of the given line that passes through the points (0, -3) and (4, 1). Identify (x1, y1) as (0, -3). Include your work in your final answer. Type your answer in the box provided or use the upload option to submit your solution. Read the excerpt from one of Professor Martin Gilberts 88 history books.On October 1 [1918], as the British Expeditionary Force prepared to break through the final obstacles on the Hindenburg Line, and the Americans got ready to launch a new attack on the Argonne, Ludendorff begged the Kaiser to issue a German peace offer at once.The First World War: A Complete History,Professor Martin Gilbert, Oxford University, 2014Which descriptions characterize this source? Select three options.biased crediblefactualoutdatedsecondary 29 POINTS PLEASE HELP IM ON A QUIZ!!!!!!!!!!! Concerns about climate change and CO2 reduction have initiated the commercial production of blends of biodiesel (e.g., from renewable sources) and petrodiesel (from fossil fuel). Random samples of 48 blended fuels are tested in a lab to ascertain the bio/total carbon ratio. (a) If the true mean is .9050 with a standard deviation of 0.0100, within what interval will 90 percent of the sample means fall It takes 12 hours to fill a pool with two pipes, where the water in one pipe flows three times as fast as the other pipe. How long will it take the slower pipe to fill the pool by itself plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppHow did the Boston Tea Party and the Intolerable Acts help to unite the Patriots in their fight against the British?put it in your own words Jackson's Home Cookin just paid its annual dividend of $0.65 a share. The stock has a market price of $13.00 and a beta of 1.12. The return on US Treasury bills is 2.5% and the market risk premium is 6.8%. What is the firm's cost of equity Why do we know more about society under the Shang dynasty than we do about society in the Indus River valley?