What is the solution of 3x + y = 9 and 3x - 5y = 15?​

Answers

Answer 1

Answer:

(10/3, -1)  

Step-by-step explanation:

So there are two different ways.  

First you could address for y and fitting it into the number cruncher. one condition for y1 and another for y2. At that point go second follow and press 5 and afterward press enter multiple times to discover the convergence.  

the subsequent path is to tackle by hand. I would recommend address the primary condition for y and attachment the condition tackled for y into the other condition. so y = - 3x + 9 and 3x-5y=15. At that point you could do 3x - 5(- 3x+9) = 15. At long last address for x and plug in x into the two conditions to check whether you get a similar y esteem.  

The appropriate response ought to be (10/3, - 1)

Answer 2

Answer:

x = 3 1/3, x = -1.

Step-by-step explanation:

3x + y = 9

3x - 5y = 15

Subtract second equation from the first to eliminate the 3x :

3x - 3x + y - (-5y) = 9 - 15

6y = -6

y = -1.

Plug y = -1 in first equation:

3x + -1 = 9

3x =  10

x = 10/3 = 3 1/3.


Related Questions

the graph shows the height of a golf ball in meters when it is hit. the height is modeled by f(x)=-5x^2+50x, where x is time in seconds. How long is the ball in the air

Answers

Answer:

This may be wrong, but x = 10

Explanation:

-5^2 + 50x
-5x (x - 10)


-5x = 0
x = 0 (This answer doesn’t make sense)

x - 10 = 0
x = 10

-5(x + 1) s 30. What is a possible value of x?
help me pls

Answers

Answer:

the answer should be x= -7 hope this helps!

What does the variable r represent in the equation 10r+4=8?
what does r represent in it?????
URGENTTTT

Answers

r =

I think “represent” is asking you to solve to a number.

10r + 4 = 8
Subtract 4 from both sides of the equation:
10r = 4
Divide both sides by 10:
r = 0.4

Check the math:

10(0.4) + 4 =
4 + 4 = 8

HURRRY!!!! NO BOTS OR SPAM OR I WILL MAKE YOU PAY!!!!

Answers

Answer:

i believe its 21.5

Step-by-step explanation:

Answer:

Volume= 360 feet³

Step-by-step explanation:

We have two shapes, a triangular prism and a rectangular prism.

Rectangular Prism: [tex]w=6, h=2, l=8, V=lwh[/tex]

So, the volume is 6×2×8=96 feet³

Triangular Prism: [tex]h=5.5-2=3.5, w=6, l=8, V=\frac{1}{2}lwh[/tex]

So, the volume is (5.5×6)÷2 ×8= 33×8=264 feet³

We have to combine the two volumes to find the volume of the whole shape. 96+264=360. So, the volume of the whole shape is 360 feet³

Which x value are solution to both of the following inequality 128>x and x<82

Answers

Answer:

A is the answer they are all possible answers but the answer a is the best

Step-by-step explanation:

Answer:

All 3 of them

Step-by-step explanation:

A  B and C are correct

X2-12x+21=-6 solve the quadratic by factoring

Answers

Answer:

(x-3)(x-9)

Step-by-step explanation:

first thing you need to do is move the -6 over. so we're going to add 6 to both sides (we add because it's negative 6 and we need 0 on the right side)

so you have: x^2-12x+27

now we need to come up with two numbers that add to -12 and multiply to 27.

the factors of 27 are 9 & 3 and 27 & 1. only 9 & 3 add to 12 so we are going to use those.

since the 12 is negative however, 9 and 3 should both be negative.

therefore we get: (x-3)(x-9)

*it doesn't matter which order you put them in!

An Attorney charges a fixed fee on $250 for an initial meeting and $150 per hour for all hours worked after that. Write an equation in slope-intercept form

Answers

Answer:

y = 150x + 250

Write an equation in slope-intercept form for the line that passes through the
given point and is parallel to the graph of the given equation.
(-1, -2), 3x - y = 5

Answers

Make slope intercept
3x - y = 5
3x = y + 5
y = 3x - 5
Parallel = same slope
Slope = 3
Y = 3x + b
Plug in the point
-2 = 3(-1) + b
-2 = -3 + b, b = 1

Solution: y = 3x + 1

Answer:

y = 3x + 1

Step-by-step explanation:

the slope of the line of the given equation can bé find in this way: -a/b, where a is the number that multiplies x and b is the number that multiplies y

m = -3/-1 = 3

two parallel lines have the same slope, so also the line that we are a searching has m=3

now we can use this formula

y-y1 = m(x-x1) where y1 and x1 indicate the coordinates of the given point

y-(-2) = 3 (x-(-1)

y+2 = 3x + 3

y = 3x + 3-2

y = 3x + 1

Which of the following pairs of lines whose equations are given are perpendicular?

R 2x + 3y = 10

3x + 2y = 5

G. 2x - 3y = 10

H. 3x - 2y = 10

21 - Jy=5

I 2x - 3y = 10

2x + 3y = 5

Answers

H and is the correct answers

Which scatterplot shows a nonlinear association?

Answers

Answer:

d

Step-by-step explanation:

it's the only one that isn't a trend

Answer:

A.

Step-by-step explanation:

It has a curve in it and linear is just like a strait line.

pls help with this immediately!!!! i’ll be giving brainiest to those who provide the correct answer. if u leave a link, have fun getting reported.

Answers

Rhombus Quadrilateral

an inequality is written below

Answers

Answer:

x > 28

Step-by-step explanation:

[tex]\frac{x-4}{-3} <-8\\\\x-4>24\\x>24+4\\x>28[/tex]

Suppose that the population of deer in a state is 7,700 and is growing 3% cach year. Predict the population
after 5 years

Answers

Answer:

Future Value= 8,927

Step-by-step explanation:

Giving the following information:

Present Value (PV)= 7,700

Growth rate (g)= 3%

Number of periods (n)= 5 years

To calculate the future value (FV) of the population after 5 years, we need to use the following formula:

FV= PV*(1 + g)^n

FV= 7,700*(1.03^5)

FV= 8,927

I need help with this please

Answers

Answer:

idek that looks like sum top tier math problem figure it out

Step-by-step explanation:

figure it out

please help ASAP will give brainleast to correct answer plus thank you!

Answers

Answer:

-31

Step-by-step explanation:

-15-9+(-7)

-15-9-7

-24-7

-31

Answer:

Is D

Step-by-step explanation:

Hope it helps you its -1

Last month you purchased 6 individual songs and 1 albums for a total of $21.99.



This month you spent a total of $44.97 on 4 individual songs and 3 albums.

How much does each song and album cost

Answers

Answer:

Song =$1.50 Album =$12.99

Step-by-step explanation:

Lets assume Individual songs = x

albums=y

6x + y = 21.99-------- y= 21.99- 6x

4x + 3y= 44.97

Replace y in the second equation

4x+ 3(21.99-6x) = 44.97

4x +65.97- 18x = 44.97

14x= 21

x = 1.50

y= 21.99- (6*1.50)

= 12.99

please help me i need this grade !

Answers

A . One solution

B . infinite solution

C . infinite solution

D . no solution

_________________________________

Thus the correct answer is option A .

Find two numbers that multiply to 16 and also add to -8

Answers

Answer:

-4,-4

Step-by-step explanation:

let the numbers be x and y.

x+y=-8

y=-x-8

xy=16

x(-x-8)=16

-x²-8x=16

x²+8x+16=0

x²+4x+4x+16=0

x(x+4)+4(x+4)=0

(x+4)(x+4)=0

x=-4,-4

Uhm I also need help with this

Answers

Answer:

D. Perpendicular

Step-by-step explanation:

First answer A. Answer A is not even correct. Parallel are two or more lines that NEVER cross

Answer B is also not correct. Line segments are a line of specific length. These are two LINES. You can tell by the arrows on the edge of each line.

Both C and D can be correct. But the answer would be D. Here is why

Intersecting lines are two or more lines that cross. Yes these lines are crossing by perpendicular lines also cross. The difference is, intersecting lines can cross at any angle. Perpendicular lines have to cross at 90 degrees making 4 right corners.

Juan's earnings vary directly with the number of hours he works. Suppose that he worked 10 hours yesterday and earned $160. How much will he earn today if he works 13 hours?

Answers

Answer: Juan’s earnings for today will be $208.

Explanation: Find the unit rate/how much he earns if he works 1 hour
160 divided by 10: 16
Which will mean: 16 dollars for working 1 hour.
Multiply 16 by 13 to find out how many he earns for working 13 hours
16 x 13 = 208
So Juan earns $208 if he works 13 hours
Goodluck! You can trust my answer
Mark me brainliest plsss

2. What is the name of the ray that is opposite RP?

Answers

Answer:

its pr

Step-by-step explanation:

because im smart

EHIE HELP PLS
thank you so much you helped a lot , this is last problem

Answers

Step-by-step explanation:

I think it's 8 down again.

And 7 down.

8•7 = 56

• = Multiplication

Which function is best represented by this graph?
A y = 1/4 x + 8
B y = 1/4 x - 2
C y = 4x -2
D y = 4x + 8

⚠️Hurry⚠️

Answers

Answer:

B- y=[tex]\frac{1}{4}[/tex]x-2

Step-by-step explanation:

To look at the slope you can count over four and then up one and its at the next point.

Also, the place on the y-axis is at -2

So, b makes the most since :)

Hope this helps :) (if it does, brainliest??)

(45 points)


(1) It takes 4 eggs for 5 waffles. How many more waffles can 6 eggs make?

(2) A 1-lb. mix will make 32 biscuits. How many ounces of mix are needed for 24 biscuits?

Answers

Answer:

1. 5/4=1.25 egg for each waffle and 6*1.25=7.5

7.5-5=2.5

What is the value of the expression below when w=3?
10w2 +9w-2

Answers

Answer:

85 if the "2" in 10w(2) is being multiplied.

But if not, then

115 if the "2" in 10w2 is an exponent.

Answer:

85

Step-by-step explanation:

10(3)2 + 9(3)-2

(30)2 + (27)-2

60+25=85

Factor completely, then place the factors in the proper location on the grid.

128x2 +96xy + 18y2

Answers

Answer:

2(8x+3y)*squared*

determine the minimum or maximum value of the function f(x)= -2x^2+4x+4

Answers

Answer:

-2x^2+4x+4= -4x+ 4x+4= 4

so the answer is 4

done

An experiment consists of spinning a spinner. Use the results in the table to find the experimental probability of the spinner not landing on red.
Red = 8
Blue = 7
Green = 9
Yellow = 6

A. 3/5
B. 11/15
C. 2/5
D. 4/15

Answers

Answer:

Probability(Not red) = 11 / 15

Step-by-step explanation:

Given:

Outcomes;

Red = 8

Blue = 7

Green = 9

Yellow = 6

Find:

Probability(Not red)

Computation:

Probability(Not red) = 1 - Probability(red)

Probability(Not red) = 1 - [Number of red/ Total]

Probability(Not red) = 1 - [8/(8+7+9+6)]

Probability(Not red) = 1 - [8/30]

Probability(Not red) = 1 - [4/15]

By taking LCM

Probability(Not red) = (15 - 4) / 15

Probability(Not red) = 11 / 15

CAN YALL ANSWER THIS PLS IM CRYING CUZ ITS DUE LATE ANYONE PLS NO TROLLS JUST PLS ANSWER IM CRYING ILL GIVE BRAINLIEST AND 5 STARTS AND A THANKS JUST PLS :(

Answers

Answer:

B and E

Step-by-step explanation:

-14 is the answer that is used to see if they are equal or not

A is incorrect because it equals -6.

B is correct because it equals -14.

C is incorrect because it equals 6.

D is incorrect because it equals -6.

E is correct because it equals -14.

A car is on a Ferris wheel with a radius of 20 feet. How far does the car travel over an angle of 2π3 radians? The car travels the distance of feet.

Answers

Answer: 21 feet, I think the first guy was wrong

Other Questions
Which stage of the demographic transition model is high fertility and high mortality, indicating low growth? Plz help ASAP Ill give brainliest Ill be so grateful but dont copy off website:) complete the equation of this circle 1. palmer luckey's backers were early adopters who enjoyed becoming part of the development processa) trueb) false can someone please help me Given a special license plate tag consists of 5 characters for a small country. The firstcharacters is a digit between 1-6. The second and third characters are letters thatcan not repeat. The last two characters can be any digits. How many unique tagsare possible?351,000 tags405,600 tags325,000 tags390,000 tags SERIOUSLY I NEED HELP I AM TAKING A BIOLOGY TEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Describe how the ear converts sound into messages that the brain can interpret.GIVE A DESCRIPTION OF 125 WORDS EWhich of these completes this sentence?A simple sentence containsa. a subject, noun, verb, and adjectivesC.b. a subject and verb, and it expresses acomplete thoughta subject and verb, but it doesn't have toexpress a complete thoughtd. a subject, noun, and verb, and it expresses acomplete thoughtPlease select the best answer from the choices provided BCDMark this and returnSave and ExitNextSU Please help- will give brainlist. If possible please tell me how you got the answer. what is the only thing that stops gamma rays? For each of the followingstatements, say whether it is true for mitosis only, meiosis only,both, or neither(a) The DNA is replicated before cell division starts.(b) The homologous chromosomes pair up during division.(c) The cell divides only once during the process. From Message Regarding Labor Legislation (March 25, 1908)by Theodore Roosevelt I call your attention to certain measures as to which I think there should be action by the Congress before the close of the present session. There is ample time for their consideration. As regards most if not all of the matters, bills have been introduced into one or the other of the two Houses, and it is not too much to hope that action will be taken one way or the other on these bills at the present session. In my message at the opening of the present session, and, indeed, in various messages to previous Congresses, I have repeatedly suggested action on most of these measures. Child labor should be prohibited throughout the Nation. At least a model child-labor bill should be passed for the District of Columbia. It is unfortunate that in the one place solely dependent upon Congress for its legislation there should be no law whatever to protect children by forbidding or regulating their labor. I renew my recommendation for the immediate reenactment of an employers' liability law, drawn to conform to the recent decision of the Supreme Court. Within the limits indicated by the court, the law should be made through and comprehensive, and the protection it affords should embrace every class of employee to which the power of the Congress can extend. In addition to a liability law protecting the employees of common carriers, the Government should show its good faith by enacting a further law giving compensation to its own employees for injury or death incurred1 in its service. It is a reproach to us as a Nation that in both Federal and State legislation we have afforded less protection to public and private employees than any other industrial country of the world. I also urge that action be taken along the line of the recommendations I have already made concerning injunctions2 in labor disputes. No temporary restraining order should be issued by any court without notice; and the petition for a permanent injunction upon which such temporary restraining order has been issued should be heard by the court issuing the same within a reasonable timesay, not to exceed a week or thereabouts from the date when the order was issued.1. to bring on oneself2. bans10Select the correct answer.How does Roosevelt support his position that employees should receive compensations in case of an injury or death in paragraph 4?A. He uses factual information.B. He cites a government authority.C. He offers a counterexample.D. He appeals to the audience's emotions. where is the magnitude of force of magnetism the greatest based on the information above , put the following events in the correct order from 1st to last please do in this format 1- and the sentence PLEASE DON'T DO RANDOMLY IF YOU DO THIS I AM REPORT YOU AND YOU ARE GONNA LOSE POINTS 2. Which of the following inventions was not an improvement on U.S. infrastructure during the late 1800's?A. TelegraphB. Cotton GinC. TelephoneD. Electric lightbulb How could people move up the social hierarchy? Ch 3B Core WB: Vocab. Act.(p.61) The following diagram on the left represents the copper nitrate solution in the halfcell before the galvanic cell starts to operate. In the following diagram on the right, draw a representation of the solution in the same halfcell after the galvanic cell has been operating for some time and is still producing a voltage.Before reaction : 4 Cu2+ molecules and 8NO3- 15 points shawtyssss Trevor is considering two loan options forbuying a home in Haslet.Thrifty HometownBank BankLoan$124,000 $124,000AmountInterest Rate 3%4%TimeMonthly$856.32 $591.99Payment15 years30 yearsWhich describes the relationship between thetotal amounts that Trevor would pay over thecourse of the two loans?a. He would pay $47,638.80 more withthe Hometown Bank loan.b. He would pay $47,638.80 more withthe Thrifty Bank loan.c. He would pay $58,978.80 more withthe Hometown Bank loan.d. He would pay $58,978.80 more withthe Thrifty Bank loan.