Mathematics High School

2x-y=8
x+2y=4

for the system of equation above, what is the value of x+y?​

Answers

Answer 1
2x+10y I thinks that’s the answer mb
Answer 2

Answer:

4

Step-by-step explanation:

2x-y=8 ---> y= 8-2x

substitute y=8-2x into x+2y=4

x + 2(8 - 2x) = 4

x + 16 - 4x = 4

-3x = -12

x = -12/-3

x = 4

substitute x=y into y=8-2x

y = 8 - 2(4)

y = 8 - 8

y = 0

therefore,

x+y= 4+0

4

btw i like ur jimin pfp besty :)

Related Questions

simplify (3x^2 y^5)^4

Answers

Answer:

Step-by-step explanation:

Equation is below

Step 1

(3x^2 y^5)^4  

Step 2

(3x^2 y^5)^4  Simplify

81x^8y^20

Step 3

81x^8y^20  check

Answer

81x^8y^20

Hope this helped

HELP!!!!! Correct only!

Answers

Answer:811.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

(7.5ftx9ftx12ft)+[5(9ftx12ft)+2(1/2x5x√(4.5^2+1.5^2)ft)]

=810ft+[540ft+2(1/2x5x6.75)ft]

=810ft+(540ft+33.75ft)

=1383.75ft

(sorry I'm not too sure if it is correct )

find the value of y. 120° y = ?°

Answers

Answer:

240

Step-by-step explanation:

360 minus 120 degree give 240 degree

Answer: 60

Step-by-step explanation:

120/2= 60

What is the equation of the line that passes through the point (-6, -5) and has a
slope of 3/2 ?

Answers

Answer

y= 1.5x+4

Step-by-step explanation:

Can you help me . Answer truthfully please I would really appreciate it.

Answers

Answer:

D must be the answer

Step-by-step explanation:

Estimate the number of pints in 445 ounces

Answers

Answer:

about 28

Step-by-step explanation:

its actually 27.8125 but if we're estimating im assuming that means to round

Answer:

28 pints

Step-by-step explanation:

There are 28 pints in 445 fluid ounces .

Easy points you know it’s easy points

Answers

Answer:

98 ft²

Step-by-step explanation:

Answer:

98 ft²

Step-by-step explanation:

Want points

Which of the equations shows an application of the Zero Property of Multiplication? A. 25+0=25 B. 13(3)= C. 0∙2=0 D. (34−2)−(34+3)=−5

Answers

Answer:

0∙2=0

Step-by-step explanation:

Zero Property of multiplication is as follows :

The product of a number and 0 is equal to 0.

In option (c), 0 is multiplied by 2 and as a result, we get 0 as the answer.

It means,

0∙2=0

Hence, option (c) i.e. 0∙2=0 shows the Zero Property of Multiplication.

What type of study would you conduct if you wanted to know how many hours a week on average students at your school spend on homework? Explain your reasoning.

Answers

Answer:

In order to get the number of hours spent by the students on homework, a survey would be conducted where information would be collected from the students.

Step-by-step explanation:

In order to acquire the information directly from the users which cannot be measured otherwise, surveys are the best option. These provide an appropriate way of reaching out to large masses at a small-time with little or no prior investment.

Are the expressions 24 42 equal? Explain your answer.​

Answers

no they are not equal

24= 2 tens 4 ones

42= 4 tens 2 ones

hence they are not equal

hope this helps and pls mark brainliest I just need 1 more to progress on to the next level:)

Answer:

no not at all

Step-by-step explanation:

not the same number

Help please. No links

Answers

Answer:

C

Step-by-step explanation:

The question is asking which one is equal to the absolut value of 12. The absolute value of -12 equals 12, so it is the same as the absolute value of 12.

Someone pls help me I’ll give out brainliest please dont answer if you don’t know

Answers

Answer:

divide both sides by 2 (to isolate the equation in parenthesis)

subtract 3 from both sides (to isolate the variable x)

x=1

Step-by-step explanation:

if you need a better explanation just let me know!

Choose the student who combined like terms correctly to write an equivalent expression. 5 + C + C + C -4. Melvin's work Sabrina's work Sudesha's work Zisel's work 5 + C + C + C - 4 5 + C + C + C-4 O 5 + C + C + C - 4 5+ C + C + C - 4 = 90 = 30 +1 = 4c = c + 1 ​

Answers

Answer:

Sabrinas work

Step-by-step explanation:

5+c+c+c-4

5+3c-4

=3c+1

Stephanie will be representing her school at the district track meet in the 200 meter race. She has kept records of her last 5 races. What is the mean absolute deviation of her races? Round your answer to the nearest tenth.RaceTime (seconds)123.6225.1324.8422.9524.2Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.

Answers

Answer:

119.816

Step-by-step explanation:

Given the data :

123.6, 225.1, 324.8, 422.9, 524.2

Mean absolute deviation (MAD) :

Σ|x - m| / n

m = mean = ΣX / n

n = same size = 5

m = 1620.6 / 5 = 324.12|

[|123.6 - 324.12| + |225.1 - 324.12| + |324.8 - 324.12| + |422.9 - 324.12| + |524.2 - 324.12|] / 5

= 119.816

(WILL GIVE BRAINLIEST) Find the total surface area of the figure shown.
ANSWER CHOICES:
319.30 yd^2
284.60 yd^2
249.60 yd^2
270.30 yd^2

Answers

Yes the answer is b
Yea

A rectangular prism has a length of 1 yards, a width of 2) yards, and a height of 4 yards.
Enter the volume of the prism as a mixed number in simplest form in the box.

Answers

Answer:

8

Step-by-step explanation:

2*1*4=8

I HELP NEED ASAP PLZ HELP ME

Answers

Step-by-step explanation:

hope it helps.........

Answer:

The answer is 6.

Step-by-step explanation:

All you need to do is turn 33 and 44 into a fraction ([tex]\frac{33}{44}[/tex]). Then you need to simplify it and it's simplest form is [tex]\frac{3}{4}[/tex]. then you up the fraction to [tex]\frac{6}{8}[/tex] and that's your answer.

Very easy answer but does any one know what C is

Answers

Answer: As the number of rides given by the taxi driver increased, the earnings of the taxi driver also increases.

Answer:

Step-by-step explanation:

they want you to recognize that it's a linear relationship

HELP ME WITH THIS PLEASE.
THANKS LOVE U GUYS SO MUCH.

Answers

Answer:

48.

Step-by-step explanation:

1). <C = 74 because it forms a supplemetary angle 180- 106 = 74.

2). We know that the sum of all the angles in a triangle is 180 so we need to add them.

3). 4y + 3y +22 + 74= 180

4). simplify 7y +96=180

5). isolate y so we must subtract 96 from either side.

6). 7y= 84 now divide by 7 on each side. 84/7 = 12.

7). Now we know y = 12 and that angle A is equal to 4y.

8). <A = 4(12) now distrubute

9). <A= 48 degrees

GOD, BLESS!!!

Evaluate the expression is a=2 and b=-1.
20-3b

Answers

Answer:

23

Step-by-step explanation:

20 - 3(-1)

20 - (-3)

20 + 3 =

23

18 multiplied by 2/3

Answers

Answer:

12

Step-by-step explanation:

18 x 2/3 = 36/3 = 12

2/3 of 18

2/3×18

2×6

12

hope this helps:)

In this diagram, ABAC – AEDF. If the area of ABAC = 24 in2, what is the area of AEDF? D À E 2 in F В 4 in С Area AEDF = [?] in2 please I need help

Answers

Answer: 6

Step-by-step explanation:

The area of the triangle EDF is 6 in².

What are similar triangles?

Two triangles are said to be similar if their corresponding angles are congruent, and their corresponding sides are in equal ratios.

Given that, two triangles are similar, ABC and EDF,

We know that, the area of two similar triangles implies that if two triangles are similar to each other, the ratio of their areas will be proportional to the square of their corresponding side ratios.

Therefore,

ar(ΔABC)/ar(ΔEDF) = (2/4)²

24/ar(ΔEDF) = 1/4

ar(ΔEDF) = 6

Hence, the area of the triangle EDF is 6 in².

Learn more about similar triangles, click;

https://brainly.com/question/14926756

#SPJ7


what is the equation of the following line please help if u can

Answers

Answer:

B I believe

Step-by-step explanation:

every time the line hits a point you go up 1 and over 4

HELP ASAP!!!!!! AND NO LINKS!!! The Utah Bees discounts tickets 30% for students 14 or younger. If adult tickets cost $23, how much will a student ticket cost after being discounted? Round to the nearest cent if necessary.

Answers

Answer:

$6.90

Step-by-step explanation:

30/100 = x/23

100x = 690

x= $6.90

19. What is the solution to 5.2x = 31.2? *​

Answers

Answer:

x=6

Step-by-step explanation:

hope this helps

Which solid has the top, side, and front views given
please help me I’m
In an exam!

Answers

Answer:

I.  most probably

Hope it helps!!!

Step-by-step explanation:

please help me!!!!!!

Answers

Answer:

(2)

Step-by-step explanation:

mean: (13+15+17+17+17+20+27)/7=18

median: 17

mode: 17

The box and whisker plots represent the number of minutes spent by users on two different social media groups. Which THREE statements are correct when comparing the plots?
A) The median time for users of Group B is 40 minutes.

B) Group B has greater median value than Group A.

C) The data for Group B varies slightly more than Group A.

D) The spread of the data for Group A is 25 minutes.

E) The spread of the data for Group A is 40 minutes. ​

Answers

Answer:

A, C, and D

Step-by-step explanation:

A computer game company conducts a survey of random sample of customers to determine their favorite type of game. The results of the survey are shown below based on the survey results how many customers are expected to prefer fantasy games out of the 1,000 customers?

Answers

Answer:

1.6% of customers

Step-by-step explanation:

Find x and y ( please explain )​

Answers

Answer:

y = 75°

Step-by-step explanation:

y and 105°

are on a straight line ,

a straight line is 180°

180 - 105 = 75°

y=75 °

I'm not sure about x hope you understand

Other Questions
tehehehehehehehehehehehehe Which expression has the least value when x = 100? A. 1x B. 10x C. 1x D. 10x You are Rachael/Rueben, President of the Wellness Cell of your school. You decideto organise a workshop, to raise awareness of the importance of mental health. Thisworkshop would be conducted by the school counsellor. Write a notice in about 50 words, informing the students of class XI-XII about the workshop. please answer all Ill give you brainliest All of the humans in a particular city would be considered a population. True or False? mobymax help 11 points math A brief explanation of a dangling modifier Find the measure of angle N Help The wings of butterflies and birds are ----------- structures because, although they are used for the same purpose (flight) they have very different structural compositions. Bird wings are made of bones and feathers while butterfly wings are made from chitin and are part of the insects exoskeleton.A) homologous B) analogous C) vestigial A 1.4639-g sample of limestone is analyzed for Fe, Ca, and Mg. The iron is determined as Fe2O3 yielding 0.0357 g. Calcium is isolated as CaSO4, yielding a precipitate of 1.4058 g, and Mg is isolated as 0.0672 g of Mg2P2O7. Report the amount of Fe, Ca, and Mg in the limestone sample as %w/w Fe2O3, %w/w CaO, and %w/w MgO Entrevista Usa estas preguntas para entrevistar a un(a)compaero/a. Explica tus respuestas.1. Es importante que los nios ayuden con losquehaceres domsticos?2. Es urgente que los norteamericanos aprendanotras lenguas?3. Si un(a) norteamericano/a quiere aprender francs,es mejor que lo aprenda en Francia?4. En tu universidad, es necesario que los estudiantesvivan en residencias estudiantiles?5. Es bueno que todos los estudiantes practiquenalgn deporte?6. Es importante que los estudiantes asistan alas clases? A study9 compared personality characteristics between adult children of alcoholics and a control group matched on age and gender. For the 29 pairs of women, the authors reported a mean of 24.8 on the well-being measure for the children of alcoholics, and a mean of 29.0 for the control group. They reported t = 2.67 for the test comparing the means. Assuming that this is the result of a dependent-samples analysis, identify the df for the t test statistic, report the P-value, and interpret. q is a degree 5 polynomial that passes through the origin, has zeros i and 3 - i, and q( - 2) = - 520. Findthe equation for g.User for your input. Simplify your answer so that it has only real numbers as coefficients. ABC Corporation has total assets of 120 million, total liabilities of 80 million, Goodwill of 12 million, and 4 millions of shares outstanding. If you believe the reasonable price to tangible book value should be 1.6 for this company, what is the implied share price of ABC Solve the system of equations. 2y-y=5 and 3x+2y=4 match the term to the definition! MARKING BRAINLIEST! What is the solution Please help Based on information from the periodic table, what does this image represent?A. A neutral fluorine atomB. A negatively charged fluoride atomC. A positively charged fluoride ionD. A neutral neon atom WILL GIVE BRAINLISTWhat is the equation of the line that passes through the point (1, 3) and is perpendicular to the line 2x+3y=15? a dog runs across a 500 sq foot house, how many miles did he run?