Can someone help me find the solution to these equations by using substitution

Can Someone Help Me Find The Solution To These Equations By Using Substitution

Answers

Answer 1
1) (x,y) = no solution

2) x=-2y

-2y-y = 9

-3y = 9

y = -3

x = -2(-3)

x = 6


(x,y) = (6,-3)

Related Questions

Jackson Middle School has 4 students in choir for every 1 student in band. If there are 56 students in band, how many students are in choir?
A. 3,136
B. 52
C. 224
D. 60

Answers

Answer:

C

Step-by-step explanation:

Because you just have to multiply 56 by 4

C. 224

56 by 4 to equal 224 or 4 in choir for 1 in band.

y=5x+1 graph the equation

Answers

This is how you would graph y=5x+1

Just choose values for x like (-2,-1,0,1,2) then replace it in the equation. Ex. For -2 it would be y=5(-2)+1
Y=-9
So the point would be x=-2 and y=-9

a factor of 15 and a factor for 24​

Answers

Answer:

3

Step-by-step explanation:

Factors for 15 : 1, 3, 5, and 15
Factors for 24: 1, 2, 3, 4, 6, 8, 12, and 24

Question 2
Acookbook originally cost $12.00. Yesterday, Marta bought it at 1/3 off. How much was deducted from the original price?

Answers

Answer:

4$ was deducted

Step-by-step explanation:

Question 20:- Fahein is interested in purchasing an AC too. He will give three times more points to energy efficiency and two points more to noise levels than sevices and installation. Whereas, design features don't matter to him. In this case he devises a way to compare the 5 models. Which one is the correct formula given his preferences?

Answers

Answer:

[tex]Total = 3E + 2N + S[/tex]

Step-by-step explanation:

Given

Represent

Efficiency with E; Noise Level with N

and Service and Installations with S

Required

Determine the correct formula

From the question

3 points goes to E: i.e. 3E

2 points goes to N: i.e. 2N

The above is the number of points more than service and installations.

So 1 point will be given to S i.e. S

The total or formula is:

[tex]Total = 3E + 2N + S[/tex]

Arthur works in a shoe store. His salary is $1,000 per month. He also earns a 6 1/2% commission rate on all of his sales. What is his total income for march if his total sales were 4,800?

Giving Brainliest to most well explained answer!
Please show work so I can learn and understand how you got the answer!

thanks,
- raincoat

Answers

Answer:

His total sales is equal to $1,312.

Step-by-step explanation:

To find his commission cost you have to multiply 6 1/2% by 4,800. So your equation would look like 4800×.065[You have to convert your percentage to decimal form]. Your answer would be 312. You then add it to your salary to get a total of $1,312.

Hope this helps!

The mean of five numbers is 12.
Four of the numbers are 7, 2, 15 and 4.
Work out the fifth number

pls help i'm on a timer

Answers

Answer:

the answer is 32

Step-by-step explanation:

the sum of 4 numbers is 28 you need an number that if you divide by 5 is 12 so its 32 because 60÷5=12

Answer:

32

Step-by-step explanation:

12*5=60

60-(7+2+15+4)=32

Hello I'm Chloe Can you help me, Thank you :)
800.5 x (2x 10^6)
A. 1.7 x 10 ^7
B. 1.601 x 10^7
C. 1.7 x 10^9

Answers

Answer:

b is correct

Step-by-step explanation:

what factors do all the multiples of 5 have in common​

Answers

Answer:

I think answer is 1..........

-8/12 DIVIDED BY 3/9

Answers

Answer:

-1/3

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

Equation with Rational Numbers 8.4x-5=20.2 solves for x..

Answers

Answer:

x=3

Step-by-step explanation:

How to get the simple interest

Answers

Answer:

0-o? you got my interest in you :0

Step-by-step explanation:

Prove that 3 + 2√5 is irrational

Answers

Answer:

A rational number is any integer, fraction, terminating decimal, or repeating decimal. The square root is not rational.

good luck, i hope this helps :)

Petrov ran 7 laps around a track.Each lap around the track is a distance of 1/4 mile. What is the total distance Petrov ran in feet?

Answers

Answer:

9240 feet

Step-by-step explanation:

Petrov ran 7 laps around a track.Each lap around the track is a distance of 1/4 mile.

Step 1

The total distance Petrov ran in miles is calculated as:

1 lap = 1/4 mile

7 laps = x mile

Cross Multiply

x = 7 × 1/4 mile

x = 1.75 miles

Step 2

What is the total distance Petrov ran in feet?

1 mile = 5280 feet

1.75 miles = x

Cross Multiply

x = 1.75 × 5280 feet

x = 9240 feet

Therefore, the total distance Petrov ran in feet is 9240 feet

last question of the night!​

Answers

Answer:

-22 + -200 < 19

-222 < 19

True Yes

cuz negative is lesser than positive

Step-by-step explanation:

It’s true so put yes!!

Adam and Katy both receive a bonus.
Adam receives 30% of £80
Katy receives £28
Work out the difference between the bonus Adam gets and the bonus Katy gets.​

Answers

Step-by-step explanation:

Adam's bonus

30/100= 0.3

0.3 *80=24

therefore Adam's bonus is £24

since Katy bonus is £28

The difference between the bonus Adam gets and the bonus Katy gets

£28 -£24 =£4

PLS HELP ME WITH 3, 4, AND 5 BRAINLIEST PLUS 100 POINTS

Answers

Answer:

What u need help with I don’t know also I’m so sorry can’t help.

Step-by-step explanation:

Question 1: A square garden has a side length of 14.5 feet. What is the area of the garden?
Question 2: What is 6 to the power of 3 or 6^3 evaluated?
Question 3: A cube has a side length of 1.1 inches. What is the volume of the cube?Question 4: Wyatt's football team has a phone call system in case a game or practice is cancelled. The coach calls 3 players. Then each of those players calls 3 players and the pattern continues. How many players will have been called during the fourth round of calls?
Question 5:
Marion is making bookmarks. On Monday, she makes 2 bookmarks. Each day after that she doubles the amount she makes. How many bookmarks will she have made on Saturday?

PLS ANSWER ALL QUESTIONS IF YOU ARE GOING TO ANSWER THIS!!

Answers

Answer:

58 ft

216

6.6

20

12

Step-by-step explanation:

What is the measure of the missing angle?

25°

60°

85°

35°

Answers

Answer:

60

Step-by-step explanation:

-24x^3y^2+16xy^3+12y^3

Answers

Answer:

4y^2 x (6x^3 - 4xy - 3y)

Step-by-step explanation:

Factor out -4y^2 from the expression

what is the answer for this
500=125x+50

Answers

Answer:

3 3/5

Step-by-step explanation:

Answer:

Your answer would be 3.6, or 3 3/5

Step-by-step explanation:

We need to isolate x, so start by subtracting 50 from both sides: 450 = 125x

Next, divide each side by 125:

3.6 = x, or x = 3 3/5

Hope this helped!

What’s the answer for a and b pls

Answers

Answer:

a.  blue

b.    3/8

Step-by-step explanation:

a. blue
b. 4/8 or 1/2

8
Express sin A, cos A, and tan A as ratios.
12
613

Answers

Answer:

see explanation

Step-by-step explanation:

sinA = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{BC}{AB}[/tex] = [tex]\frac{6\sqrt{3} }{12}[/tex] = [tex]\frac{\sqrt{3} }{2}[/tex]

cosA = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{6}{12}[/tex] = [tex]\frac{1}{2}[/tex]

tanA = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{BC}{AC}[/tex] = [tex]\frac{6\sqrt{3} }{6}[/tex] = [tex]\sqrt{3}[/tex]

I know life can get hard but don't give up no matter what happens, because you never get anything out of quitting, but you get the most if you keep trying, and trying.

This is what you don't do

Don't let this world make you bitter. Don't let the actions of other people turn you cold on the inside. Certain things happen that hurt us, people come that leave us, and most of all there are moments when you're bound to fall. Don't let those things make you unkind. It's okay to cry. It's okay to be sad. But it's never okay to do other people wrong just because you were done wrong. We're human. We break. We make mistakes. But don't let pain and sadness run your lives. Wake up in the morning and do what you think is right. There are moments in your life where you feel like giving up and you can't take it anymore. It's okay. Breathe. Inhale. Exhale. I know you're weak. But the things that show your weak side are also the same ones that make you stronger in the long run. It's all about taking whatever life throws at you and learning from it.

Hope you like it. Have a great day.​

Answers

Answer: Nice words my guy

Step-by-step explanation:

Answer:

Ty this is soo inspiring!!

Step-by-step explanation:

Life is all about going through upward and all in to pursue our dreams. Don’t let any kind of obstacle and failure pin you down or push you against your success of life. Fight hard the battle of life and take the challenges with courage, determination, and perseverance. Just keep moving forward with hope and this day is not so far when life will put the crown on your head as a successful human being. Here we offering some of the best inspirational messages about life and good thoughts from various reliable sources that will be your best supporter to pursue your dreams of life. Life is short, live it. Love is rare, grab it. Anger is bad, dump it. Fear is awful, face it. Memories are sweet, cherish it!

When life seems unbearable, hold on. Because you have not yet seen the next page of the book of life. It is full of unknown mysteries, suspense, adventures and unachieved success.

Life asked with Death: Why people love me and hate you, “Death said you are a beautiful lie and I’m a painful truth. Happiness of life lies within yourself. As long as you feel you are content, you are happy.

In life happiness is a matter of perception. Some choose to stay unhappy about having everything. And some choose to stay happy with the little things he has.

The moment you seize worrying, the moment you will feel happy. It’s all about your choice.

a car is going west at 60mi/hr for 5 hours how can you write that the car is travelling west with a number

Answers

Answer:

Step-by-step explanation:

not sure I understand the question but

60mi/h west?

what is an equation for (-4,7)

Answers

Answer:

28

Step-by-step explanation:

-4x7=28

y=-4x+7

Follow y=mx+b slope formula!!

Please solve fast plz

Answers

14 because they are vertical angles

Answer:

r=14

Step-by-step explanation:

7r+6=8r-8

-8r     -8r

-1r+6=-8

    -6  -6

-1r=-14

/-1    /-1

r=14

Hope this helps!

So, I think the Knave of Spades is telling the truth because he wasn't accused of anything but im not sure. Brainliest goes to whoever answers the question properly :>

Answers

Answer:

B

Step-by-step explanation:

It all starts whether the Knave of Hearts tells the truth or not. You can decide yourself.

Hearts: H

Clubs: C

Diamonds: D

Spades: S

If H lies, C tells the truth, therefor D lies. So S tells the truth

If H tells the truth, C lies. Therefore D tells the truth and S lies

Answer:

2

Step-by-step explanation:

If the knave of hearts did steal the tarts, then the knave of clubs is lying saying that the knave of hearts is lying which mean the knave of diamonds is actually telling the truth when the knave of clubs said the knave of diamonds is lying they are therefore lying.

So in the question may be knave of hearts and Knave of diamonds may be telling the truth OR knave of clubs and knave of spades are telling the truth.

In conclusion, Alice stole the tarts xoxo

Mr. Iba, a Medicare patient with a Medigap insurance policy, is seen for an office visit and the fee is $80. The Medicare-approved amount is $54.44. The patient has met his deductible for the year. Physician’s actual fee $_____

Answers

Answer:

$43.55

Step-by-step explanation:

From the information given:

The fee paid by the patient = $80

The approved amount by Medicare = 54.44

The physician's actual fee which is the medicare payment check:

= 54.44 × 0.80

= $43.55

-15x+24+16x=3x-24-3x-24-3x how to make one solution by adding A 3x to both sides of the equation and simplify B. by adding 24 to both sides C by subtracting 3x from both sides or D.by subtracting 24 from both sides

Answers

Answer:

B

Step-by-step explanation:

Answer:

Answer is B

Step-by-step explanation:

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