Mathematics College

The solution of equations system using the Substitution Method
y = 3x & 2y+2x=24 is (3,9)
true
or
false
help mee​

The Solution Of Equations System Using The Substitution Methody = 3x & 2y+2x=24 Is (3,9) True Or

Answers

Answer 1

Answer:

True

Step-by-step explanation:

[tex] \begin{cases} y = 3x \\\\ 2y + 2x = 24\end{cases} [/tex]

Plugging y = 3x in the equation 2y + 2x = 24, we find:

2(3x) + 2x = 24

6x + 2x = 24

8x = 24

x= 24/8

x = 3

Plugging x = 3 in the equation y = 3x we have:

y = 3*3 = 9

(x, y) = (3, 9)

Related Questions

Find the Mode:
88, 82, 81, 89, 77, 95
89, 90, 81, 75

Answers

Answer:

81 is the mode

Step-by-step explanation:

THe mode is the number ina. Set of data that appears the most. In this case, 81 appears twice while all the other numbers only appeared once. So 81 in this case is the mode.  

Andrew randomly selects a number from 1-15. What is the probability that the number he selects is an even number?

Answers

Answer:

7/15

Step-by-step explanation:

Probability= Number of even numbers / Total numbers

There are 7 even numbers between 1 and 15

P = 7/15

What's the slop of the line with the two points 3,2 and 7,9

Answers

Answer and working out attached below. Hope this helps

Brainliest for correct answer

Answers

D hope this helps xx

Which TWO expressions can be used to represent the tiles shown here?​

Answers

Answer:

4(2a + b)

and

8a + 4b

Step-by-step explanation:

Hope this helped :)

Step-by-step explanation:

8a+4b

4(2a+b)

hope this helps

A cylinder has a height of 10 centimeters. It's volume is 5306.6 cubic centimeters. What is the radius of the cylinder

Answers

Answer: 13

Step-by-step explanation: r=V

πh=5306.6

π·10≈12.9967


Factor the expression.
20b + 35 =
(Factor completely.)

Answers

Answer:

I think it would be 5(4b+7)

Step-by-step explanation:

I divided both terms by 5.

What is the volume of the square pyramid

Answers

Answer:

V≈2933.33

Step-by-step explanation:

(explanation in picture)

Please brainliest!

The incomes in a certain large population of college teachers have a normal distribution with a mean $75,000 and standard deviation $10,000. 16 teachers are selected at random from this population to serve on a committee. What is the probability that their average salary is more than $77,500?

Answers

Answer:

The probability that their average salary;

standard error

= 10,000/sqrt(16)

=10,000/4

= 2500  

(77,500 - 75000)/2500

2,500/2500

= 1  

p (z > 1) = .1587

So, the probability that their average salary is more than $77,500 is 0.1587

Step-by-step explanation:

A building 240 feet tall casts a 40 foot long shadow. If a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the person's eyes to the top of the building (to the nearest hundredth of a degree)? (Assume the person's eyes are 4 feet above ground level.)

Answers

9514 1404 393

Answer:

  80.38°

Step-by-step explanation:

The relevant trig relation is ...

  Tan = Opposite/Adjacent

The person is standing 40 ft from the building. The point they're looking at is 236 ft above their eyes. So the angle α is found from ...

  tan(α) = 236/40

  α = arctan(236/40) ≈ 80.38°

combine like terms !-3r - 5 + 2r - 3r - 2s
HELP ASAP

Answers

Combine the r’s first:
3r + 2r - 3r = 2r
2s and 5 cannot combine because they don’t have the same variable after the number

Answer: 2r + 5 + 2s

Finding missing angles
180°
35°
X

Answers

Answer:

90 degree and 55 degree

plz mark me as brainliest

Help with translations!

Answers

Given:

The figure of a trapezoid.

The figure is translated down 5 units and then rotated 180 degrees clockwise.

To find:

The coordinates of the image of point W after these transformation.

Solution:

From the given figure it is clear that the coordinates of point W are (-6,3).

The figure is translated down 5 units. So,

[tex](x,y)\to (x,y-5)[/tex]

[tex]W(-6,3)\to W'(-6,3-5)[/tex]

[tex]W(-6,3)\to W'(-6,-2)[/tex]

After that the figure is rotated 180 degrees clockwise.

[tex](x,y)\to (-x,-y)[/tex]

[tex]W'(-6,-2)\to W''(6,2)[/tex]

Therefore, the coordinates of point W after the given transformations are (6,2).

PLS ANSWER PLS DUE TODAY

Answers

Answer:

radius of semi circle is 16mm.

diameter of semi circle is 32mm.

perimeter of triangle=sum of all sides.

perimeter of triangle = 20mm+20mm+32mm

perimeter of triangle =72mm

perimeter of semi circle=pi×r

perimeter of semicircle = 3.14×16mm

perimeter of semicircle =50.24mm

perimeter of the figure= 72mm+50.24mm=122.24mm

what is the answer? can someone help me

Answers

Answer:the answer u put is correct

Step-by-step explanation:

AABC is isosceles.
MZA = 48° and mZB = 4x + 4.
A
B
x= [?]


Answers

11 I hope that is on of your options

The manager of a restaurant recorded how many people are in different groups of customers and how much does group spent on food and beverages. The scatterplot below shows the date if she recorded. Based on this scatterplot, about how much money would a group of 10 people be expected to spend on food and beverages at this restaurant?

Answers

Answer:

$135

Step-by-step explanation:

I need help with solving this equation.​

Answers

Answer:

66 m².

Step-by-step explanation:

From the question given above, the following data were obtained:

Diagonal 1 (d₁) = 11 m

Diagonal 2 (d₂) = 12 m

Area (A) =?

The area of a rhombus when the diagonals are given can be obtained as follow:

A = ½(d₁d₂)

A = ½ × (11 × 12)

A = ½ × 132

A = 66 m²

Thus, the area of the rhombus is 66 m²

15 POINTS
Consider the line in the coordinate plane that passes through the point (-7, -3) and the origin. Find the slope of a line perpendicular to the line described.
A) - 1, 3
B) - 3, 7
C) - 7, 3
D) 3, 7

Answers

Answer:

C. -7/3

Step-by-step explanation:

The slope of the line that passes through points (0, 0) and (-7, -3) is:

m = (y₂ - y₁)/(x₂ - x₁) m = (-3 - 0)/(-7 - 0) = 3/7

Perpendicular lines have opposite-reciprocal slopes:

-1 / (3/7) = - 7/3

Correct choice is C

An ice company has y lbs of ice in stock. The company sells 500 lbs of ice and then receives a new shipment of 5x lbs of ice. Which expression represents the
weight of ice the ice company has now?

Answers

Answer:

yes

Step-by-step explanation:

no sabo

Select all numbers that have an absolute value of 4.

Answers

Answer: 4 and -4

Step-by-step explanation: There isn't an actual explanation I can give for this answer, it is based on technical meaning.

Answer: 4 & -4

Absolute (denoted by the vertical bars) means that everything between them is converted to non-negative. So |−4|=4 and so is |4|=4 .

Step-by-step explanation:

Name:
L153
Mean Absolute Deviation
Find the mean absolute deviation of each set of data. Round your answer to two decimal
places.
1) 61, 87, 46, 79,53, 46
2) 9, 2, 1, 3
Absolute
Absolute
Data Mean Difference
Data Mean
Value
Difference
Value

Answers

Answer:

amen

Step-by-step explanation:

amen you shall pass

Look at the pattern below. Which fraction would complete the pattern?
1/4, 2/8, ___, 4/12.
answer
A. 3/12
B. 3/14
C. 3/9
D. 3/15​

Answers

The answer is: A. 3/12

13. Reasoning In 2016, the world's oldest
tree was 5,066 years old. Write the
number that is one hundred more using
number names?

Answers

Answer:

five thousand, one hundred and sixty six years old.

Step-by-step explanation:

 Consider the line segment LP with endpoint at L (-3, -5) and P (9, 7) and midpoint M.

What is the x—coordinate of N, the point that partitions segment MP in a 1 : 1 ratio?

A. 4
B. -4
C. -6
D. 6

Answers

Answer:

D. 6

Step-by-step explanation:

M is midpoint of LP and N is midpoint of MP

Use midpoint formula:

x = (x₁ + x₂)/2

Find x-coordinate of M:

x = (-3 + 9)/2 = 3

Find x-coordinate of N:

x = (3 + 9)/2 = 6

Correct choice is D

Grant started a marathon at 8:00 am. He took 4 hours 49 minutes to complete the marathon. When did he cross the finish line

Answers

He crossed the finish line at 12:49 p.m.

Find the area of the following figure: 11in 10in

Answers

Answer:

(no simplification) = 55 + (25[tex]\pi[/tex]/2) in^2

(with simplification) = (110 + 25[tex]\pi[/tex])/2 in^2

(with pi rounded to 3.14) = 94.25 in^2

Step-by-step explanation:

Let's start with the easier shape, the triangle. The formula for area of a triangle is 1/2(base)(height). Since at the far right we have 10 in, we can apply that to the triangle to get the base = 10 inches. The height is given as 11 inches so we can then calculate the area which is 55 in^2.

Then, the circle. We know that area of a whole circle = [tex]\pi r^{2}[/tex]. Since we know that a semicircle is 1/2 of a full circle, we can find the area of the entire circle then divide it by 2.

It gives the diameter as 10, divide that by 2 to get the radius. r=5. Plug 5 into the equation of [tex]\pi r^{2}[/tex] and you get 25[tex]\pi[/tex]. Divide that by 2 to get 25[tex]\pi[/tex]/2.

Add the triangle and the semicircle areas.

(no simplification) = 55 + (25[tex]\pi[/tex]/2) in^2

(with simplification) = (110 + 25[tex]\pi[/tex])/2 in^2

(with pi rounded to 3.14) = 94.25 in^2

what is the measurements of the circle?​

Answers

Answer:

what is the circle

○ YW 42

The picture isn’t very clear so I’m not sure what is the question but you can find the measure of xw
78+42+xw=180
xw=60

Please help
here the question
Rosalina just started a new job. She has $500 in her bank account. Every week, she deposits $40 into her bank account.

A)
Write an expression to represent how much Rosalina has in her account at any given time using x to represent the number of weeks.
I ALREADY SOLVED A BUT I NEED HELP WITH C

B) Rosalina wants to save $700 for the new smart tv write and equation to determine how many weeks (x) it will take for rosalina to have enough money to purchase her new tv

C) using your equation from b will rosalina have enough money for her new tv in four weeks?

also) how would the equation change if rosalina stopped working wasn't able to deposit $40 and had to instead withdraw $40 a week? Which part of your equation would change?

please help!

THANK YOU!!​

Answers

Answer:

Let M represent the amout at any time.

She saves $40 per week so total amount becomes 40x in any specified week.

where x is the number of weeks.

In the start she has $500 in her bank account so we 'll add this amount into the savings per week. So expression becomes

M = 40x+500

Simply put number of week in place of x and find the total amount.

Step-by-step explanation:

Answer:

for c it is no

Step-by-step explanation:

it is no because she deposits 40 a week, in 4 weeks she deposits 40x4=160, which is nowhere close to the 700 she needs. Even if you count the 500 in her account it is still no since it would total up to 660, not 700


PLEASE HELP !! ILL GIVE BRAINLIEST !!

Answers

Answer:

7 x - 9 + 11 x - 9 = 180

Step-by-step explanation:

For the equation: 7 x - 9 + 11 x - 9 = 180

Value of X is 11

7x - 9 + 11x - 9 = 180

combine values

18x - 18 = 180

18x = 198

18x/18 = 198/18

x = 11

Angle Measures is

7 (11) - 9 = 77-9 = 68 degrees

11 (11) - 9 = 112 degrees

Other Questions
Suppose the price level is fixed, the MPC is 0.5, and the GDP gap is a negative $80 billion. To achieve full employment output (exactly), by how much should the government reduce taxes? What correctly instantiates a house object if the house class contains a single constructor with the declaration house(int bedrooms, double price)? In 2020, eighty percent of U.S. households had an internet connection (p = 0.8). A sample of 200 (n) households taken in 2021 showed that 76% of them had an internet connection (p = 0.76). We are interested in determining if there has been a significant decrease in the proportion of U.S. households that have internet connections. 1. State your null and alternative hypotheses: 2. What is the value of the test statistic? Please show all the relevant calculations. 3. What is the p-value? 4. What is the rejection criterion based on the p-value approach? Also, state your Statistical decision (i.e., reject /or do not reject the null hypothesis) based on the p-value obtained. Use a = 0.1 What is a blooper? Television producer Kermit Schaefer first defined the word blooper to describe mistakes made on television, in radio, and in films. Today the word blooper is used to describe any embarrassing blunder. In this textbook we use the word blooper to refer to language mistakes made in writing and speech. At the end of each chapter, you will find a list of written and spoken bloopers. Many of these bloopers appeared in prestigious publications or were spoken by highly respected individuals. Using the skills you are learning in this class, try to identify why the following items are bloopers. Consult your textbook, dictionary, or reference manual as needed. Also think about what part of speech each blooper demonstrates. To see if you recognized the blooper, go to www.cengagebrain.com and use your access code to see the Spot the Blooper key.Blooper 6: In a Washington Post article: "What drains out is an intensely sweet juice that is fermented into a pricey wine found on the desert lists of the finest restaurants." The Consumer Product Safety Commission is primarily responsible for protecting the public from misleading television ads for products.True or False When GDP per person in China in 2016 is valued at ___ GDP per person in the United States is___ Simes that in China. A. purchasing power parity prices; 5.3 B. the market exchange rate: 6.3 C. the market exchange rate: 3.8 D. purchasing power party prices: 6.3 at what speed do a bicycle and its rider, with a combined mass of 80 kgkg , have the same momentum as a 1800 kgkg car traveling at 4.8 m/sm/s ? The primary role of business technology during the 1970s was toa. support existing business by improving the flow of financial information.b. empower workers by giving them access to greater amounts of information.c. implement new production methods that relied on automated equipment.Incorrectd. protect proprietary company information from outsiders. Assume a company has inventory valued at $50,000, its total current assets, including this inventory, total $90,000. Its total current liabilities total $20,000. Its quick ratio is: .5 1 1.8 less than 1 Which of the following statements regarding direct finance is true? A. Securities are assets for the firm that issues them and liabilities for the individual that buys them. B. Direct finance occurs when borrowers sell securities directly to lenders. C. Direct finance requires the use of financial intermediaries. D. In the United States, more funds flow through the direct financial channels than through indirect financial channels. Let's assume that a carpenter borrowed $2,000 to be paid off in a year to finance a machine that would make him work faster As a result, he is able to take on more projects and collect $400 more earnings in the first year, after paying off the principal of $2,000. However there is a 15% rental fee (interest) on his loan that he also has to pay off. The carpenter earned an extra $ in the first year (Round your response to the nearest dollar) Which best describes the Hospitality and Tourism career cluster?A group of careers that focus on going from one place to another for business, pleasure, or other reasons.A group of careers that focus on the act of traveling, sightseeing, and enjoying activities that are specific to a location.A group of careers that focus on being welcoming to guests, such as guests who stay for a meal or who stay overnight.A group of careers that focus on providing people with food, a place to stay, assistance to travelers, and fun activities. Discuss three organizational factors that can prevent a firm in fully realizing the benefits of a new information system and provide examples for each. An investment offers $6,125 per year for 15 years, with the first payment occurring one year from now. Assume the required return is 8 percent. a. What is the value of the investment today? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What would the value be if the payments occurred for 40 years? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) c. What would the value be if the payments occurred for 75 years? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) d. What would the value be if the payments occurred forever? (Do not round intermediate calculations and round your You qualify for a $11,200 loan from the Crane Student Loans Program to help finance your education. Once you graduate, you start repaying this note payable at an interest rate of 4.8%. The monthly cas The length of the shorter leg of a 30-60-90 Special Right Triangle is 17 yd long. How long is the longer leg of the triangle?1) 17yd2) 172yd3) 173yd4) 34yd An artificial Earth satellite is moved from a circular orbit with radius R to a circular orbit with radius 2R. During this move: A. the gravitational force does positive work, the kinetic energy of the satellite increases, and the potential energy of the Earth-satellite system increases B. the gravitational force does positive work, the kinetic energy of the satellite increases, and the potential energy of the Earth-satellite system decreases C. the gravitational force does positive work, the kinetic energy of the satellite decreases, and the potential energy of the Earth-satellite system increases D. the gravitational force does negative work, the kinetic energy of the satellite increases, and the potential energy of the Earth-satellite system decreases E. the gravitational force does negative work, the kinetic energy of the satellite decreases, and the potential energy of the Earth-satellite system increases A regression analysis is prepared using a. multiple dependent and one independent variable b. multiple dependent and multiple independent variables c. one dependent and multiple independent variables d. one dependent and one independent variable Which is a FALSE statement about Outsourcing?a. It is an arrangement by which one organization provides a service or services for another organization that chooses not to perform these services in-house (within the organization).b. One benefit of Outsourcing is Information Security.c. The primary reason companies Outsource is to tap outside sources of expertise.d. Outsourcing provides financial savings and increased technical abilities. Under IFRS and ASPE one of the formal principles which set out the criteria that must be satisfied before an expense can be recognized is: a. The expense cannot be reliably measured. b. There has been a decrease in future economic benefits caused by a decrease in an asset or an increase in a liability. c. There has been an increase in future economic benefits caused by a decrease in an asset or an increase in a liability. d. The ownership (or control) and benefits of the goods have been transferred to the customer, or the services have been provided to the customer. how much energy is required to move a 1 000-kg object from the earths surface to an altitude twice the earths radius?