If x (x+y) = 27 and y (x+y) = 54, what is the value of (x+y)^2?

Answers

Answer 1

Answer:

9x^2

Step-by-step explanation:

It is given that:

x ( x + y ) = 27

If one manipulates the equation, by dividing by x, they get:

x + y = 27/x

It is also given that:

y ( x + y ) = 54

Again, manipulate the equation, only this time, divide by y,

x + y = 54/y

It is obvious that;

x + y = x + y

Yet this was proven;

x + y = 27/x

x + y = 54/y

Therefore, the following has to be true;

27/x = 54/y

To sove the proportion, use cross products;

27/x = 54/y

54x = 27y

Inverse operations:

54x = 27y

/27     /27

y = 2x

Substitute;

(x + y)

y = 2x

= (x + 2x)

= 3x

Now solve:

(3x)^2

9x^2

Answer 2
If x=27 and y=54, add them together then multiply by 2 and get 162

Related Questions

Students in the science lab are measuring the mass of an object on a triple beam balance. The object has a mass of 38 grams. Complete the table below with the absolute and percent error for each students’ measurement. Round your answer to the nearest tenths place.

Answers

Answer:

Step-by-step explanation:

simplify by combining like terms: 1.9h + 4.5h + 8

Answers

Answer:

14.4h

Step-by-step explanation:

I assumed you meant 8h because 8 isn't a like term.

Answer:

=6.4h+8

Step-by-step explanation:

Best answer gets brainliest

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Thank you for deleting a answer so I can put down the answer so the answer is 1,920

Best answer gets brainliest

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Answer:

is mine the best answer

Step-by-step explanation:

please say it is

Gloria wants to make beef stroganoff for 12 people. Her recipe serves 8 people and calls for 4.5 pounds of ground beef. How much ground beef should Gloria purchase?

Answers

Answer:

6.75 pounds

Step-by-step explanation:

This question is of direct variation. We will use x as our answer. 8 is 2/3 of 12, so 4.5 should be 2/3 of x. We can now make an equation.

In order to solve the equation, we multiply both sides by the reciprocal of 2/3, which is 3/2.

* stands for multiplication

From solving our equation, we get 6.75. We can't forget the units, so the answer is 6.75 pounds.

A type of fish your aquarium cost $9 each you can spend no more than $54 how many of these fish can you buy write an inequality to model the problem how many fish can you buy

Answers

Answer:

x=54-9f

6 fish

Step-by-step explanation:

You would do 54 ÷ 9 = 6 because each fish costs 9$ from 54$.

Answer = 6

PLEASE ANSWER

Students in the science lab are measuring the mass of an object on a triple beam balance. The object has a mass of 38 grams. Complete the table below with the absolute and percent error for each students’ measurement. Round your answer to the nearest tenths place.

Answers

Answer:

The answer is 40

Step-by-step explanation:

have a nice day!

The absolute error of Danielle, Iris, and HB is 2,6 and 1 gram respectively. The percentage error of Danielle, Iris, and HB  are 5%,15%, and 2.5%  respectively.

What is the percentage?

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Actual mass = 38

Danielle error = 40 - 38 = 2 grams

% error = 2/40 x 100 = 5%

Iris error = 4 - 34 = 6 grams

% error = 6/40 x 100 = 15%

HB error = 41 - 40 = 1 grams

% error = 1/40 x 100 = 2.5%

Hence "The absolute error of Danielle, Iris, and HB is 2,6 and 1 gram respectively. The percentage error of Danielle, Iris, and HB  are 5%,15%, and 2.5%  respectively".

For more about the percentage,

brainly.com/question/13450942

#SPJ2

Unit Rate - the value of one **hint**divide

Sam paid $131 for 4 Rodeo Concert Tickets. Each ticket costs the same amount. What was the cost of each concert ticket in dollars and cents?

Answers

Answer: 32.75

Step-by-step explanation: 131/4 = 32.75

Find the length of a base and its corresponding height of the triangle.

Answers

Answer:10cm

Step-by-step explanation:

Add 4 and 6 to get 10 cm

10 cm for this you jus add 6+4

Which of the following is E ∪ F?
D = {x|x is a whole number}
E = {x|x is a perfect square between 1 and 9}
F = {x|x is an even number greater than or equal to 2 and less than 9}

1. {4}
2. {3, 4, 5, 6, 7, 8}
3. {2, 3, 4, 5, 6, 7, 8}
4. {2, 4, 6, 8}

Answers

For E the answer is 2. Because the square of 1 is one and 9 is three. And 2 to the square root of two which would be 2 time 2= 4

[PICTURE ATTACHED] HEELLPP

variability kiddos.

Answers

Answer: D

Step-by-step explanation:

Hope this helps

MATH HELP!! What is the y-interpret of this line?

Answers

Answer:

B(0,2)

there was a y- intercept at the line.. u must see the point that intercept with y- axis

Answer: B. (0,2)

Step-by-step explanation: Look at where the line goes through the Y-axis. You can see it goes through the 2 on the y-axis so its (0,2)

Nikos is building a raised rectangular garden in his backyard. The perimeter of the garden is 40 feet. Its width is 8 feet. What is its length?

Answers

The length of it is 12ft

Answer:

Length = 12 FT

Width= 8 FT

Perimeter= 40 FT

Step-by-step explanation:

Your test scores in science are 83 and 87. What possible scores can you earn on your next test to have a test average between 85 and 90, inclusive?

Answers

You need to do any extra work and score 100 on at least like three things

Express this distance in scientific notation using an appropriate unit from the given list. (look below for the image)

Answers

Answer:

"C" & 1.4 e4

Step-by-step explanation:

Use "Light-year" unit.

8.232 e16 (miles) / 5.88 e12 = 1.4 e4 (light-years)

What is the distance between -3 and 12

Answers

Answer:

15 IS YOUR ANSWER

Step-by-step explanation: BRAINLIEST PLEASE AND THANKS

Answer:

15

Step-by-step explanation:

I am not 100% sure, it could be wrong

Erica can solve 30 addition problems in 15 minutes. If she works at the same rate, how many problems can Erica solve in 2 minutes?

Answers

Answer:

4 problems.

Step-by-step explanation:

30 is double 15,

4 is double 2

Hope I helped!

Answer:

Erica can solve 4 problems in 2mins.

Step-by-step explanation:

30 divided by 15 is 2, meaning she solves 2 problems in 1min. To solve for 2mins you have to multiply 2 by 2 and you get 4.

Need help for 2 and 3realy don't understand 3

Answers

You got 2 right I think you add 8 to 16 which makes 24 make them whole numbers and get 12 as an answer so r=12

Answer:

p=6 and r=48

Step-by-step explanation:

19=4p-5

19+5=4p

24=4p

24/4=p

6=p

check

19=4p-5

19=4x6-5

19=24-5

19=19

3)r/2-8=16

r/2=16+8

r/2=24

r=24x2

r=48

check

r/2-8=16

48/2-8=16

24-8=16

16=16

Simplify.....
4p + 2p

Answers

Answer:

6p

Step-by-step explanation:

You just add 4 and 2 together and then put p at the end because they are like terms.

6p it’s basic math
4+2=6
And bring the p

answer correct and you get brainlyest
5- 3/14= ?
only fractions no decimals

Answers

Answer:

4 11/14

Step-by-step explanation:

I did mental math and thats what I got so that should be right.

5- 3/14 is 67/14
Which is 4 11/14
Or
4.7857142

Sheila buys two concert tickets from her friend. She pays $90 for the two tickets . She looks at the tickets and sees that each ticket has face value of 52.50
what was the percent markdown, rounded to the nearest whole percent/?

ASAP PLZ

Answers

Answer:

52.50×2=105. then 105-14% answer is 14%

Answer:

14% markdown

Step-by-step explanation:

I havent had to do one of these in a while so I'm not 100% sure that I answered it right. its pretty hard to explain but just add a comment asking for the steps if u want them. and tell me if it was right or wrong plz

what are the names of ALL the members of nct? (you only need to put their stage name)

(i know this i just wanted to see if anyone is pretending they do) meeheheheeh

Answers

Answer:

Taeyong, Taeil, Johnny, Yuta, Kun, Doyoung, Ten, Jaehyun, WinWin, Jungwoo, Lucas, Mark, Xiaojun, Hendery, Renjun, Jeno, Haechan, Jaemin, YangYang, Shotaro, Sungchan, Chenle, Jisung

Step-by-step explanation:

Answer:

johnny

jisung

jaemin

jaehyun

jungwoo

jeno

mark

lucas

taeyong

ten

winwin

kun

hendery

yangyang

xiaojun

taeil

haechan

renjun

shotaro

sungchan

yuta

doyoung

chenle

Step-by-step explanation:

i think thats it ;(

also lol dm me answering this 6 days late lol

I will write the steps to find the slope and y-intercept from a graph.

Answers

Y-INTERCEPT: It's called the "y intercept" and it's the y value of the point where the line intersects the y- axis. For this line, the y-intercept is "negative 1." You can find the y-intercept by looking at the graph and seeing which point crosses the y axis. This point will always have an x coordinate of zero.

SLOPE:The slope will be the same for a straight line no matter which two points you pick as you know. All you need to do is to calculate the difference in the y coordinates of the 2 points and divide that by the difference of the x coordinates of the points(rise over run). That will give you the slope.

The Y intercept is where the line crosses the Y axis on a graph. On an equation in the form Y=Mx+B it would be the +B. On an equation the slope is always the Mx

* Elimination With Multiplying *
1. 2x − 3y = −6

-5x − 9y = 15

2. −8x − 3y = 16

−8x − 4y = 24

3. 4x − 2y = 22

−3x − 9y = −6

Answers

1.
(2x-3y=-6)-3
-5x-9y=15

-6x+9y=18
-5x-9y=15
-11x=33
x= -3
y=0

2.
(-8x-3y=16)-1
-8x-4y=24

8x+3y=-16
-8x-4y=24
-1y=8
y= -8
x=1

i couldn’t figure out 3 where it made sense but i hope i helped

pls help asap i need help plz
The table below shows the number of cookies in different numbers of packs:
Number of Packs Number of Cookies
2 6
3 9
4 12
5 25

Is this true or false? The numbers in the table represent a proportional relationship.

Answers

Answer:

False, It was till Pack 5 it was going up 3 every pack but at 5 it went up 13 cookies.

It is False , that’s ur answerrr

SCIENCE:
Speed Velocity and Time​

Answers

Q1.

D= 1546

T= 67

S= D/T=S

1546/ 67= 23.07

Q2.

D= 29

T= 32

S= D/T=S

29/32= 0.91

Q3.

D= 43

T= 40

S= D/T=S

43/40= 1.08

Q4.

D= 2467

T= 4.41

S= D/T=S

2467/4.41= 559.41

seem that the questions have been answered

What is the x and y intercept of the following function
y=1-x

Answers

X = (1,0) y=(0,1) is your answers
Y=mx+b the y represents the answer, while the mx+b represents the equation

Please help! (I'll give brainliest to the first right answer.)

Answers

Answer:

1. 2,3; -2, 3

2. Both points share common values, but their absolute values for the x-value vary.

3. 2,3; 2, -3

4. Both points share common values, but their absolute values for the y-value vary.  

Step-by-step explanation:

For 1, the answer is thus:

-On the graph, the original point is 2, 3.

-A reflection over the y-axis changes the x-value, so it would be -2,3.

Similar for the next chart:

-The initial point is 2,3.

-A reflection over the x-axis changes the y-value, so the reflected point would be 2, -3.

The explanation is:

Both points have similar values except with differences in the absolute value.

Hope this helps you.  

(The answer to your question would be
2,3) (-2,3)

If you have time... HELP

Answers

Answer:

8/5

Step-by-step explanation:

opposite reciprocal

flip sign ±

flip numerator and denominator

I cant find this answer ANYWHERE. Please help
The table shows the relationship between the number of drops of food color added to different number of cups of cake frosting:


Cups of
Frosting Drops of
Food Color
2 6
3 9
4 12
Which point below shows an equivalent ratio in this situation?

A graph is shown. The title of the graph is Cake Decorating. The horizontal axis label is Frosting in cups. The horizontal axis values are 0, 10, 20, 30, 40, 50, 60. The vertical axis label is Food Color in drops. The vertical axis values are 0, 30, 60, 90, 120, 150, 180. Point C is plotted on the ordered pair 60,20, and Point M is plotted on the ordered pair 50, 150.

A. Point M, because if drops of food coloring are 50, then cups of frosting will be 150

B. Point M, because if cups of frosting are 50, then drops of food coloring will be 150

C. Point C, because if cups of frosting are 60, then drops of food coloring will be 20

D. Point C, because if drops of food coloring are 60, then cups of frosting will be 20

Answers

its c, look at the connections.

I’m pretty sure this would be C
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