Alvin’s first step in solving the given system of equations is to multiply the first equation by 2 and the second equation by –3. Which linear combination of Alvin’s system of equations reveals the number of solutions to the system?

9x + 4y = 36

6x + 2.5y = 24

Infinite solutions: 0x – 0y = 0
No solutions: 0x + 15.5y = 144
One solution: 0x + 0.5y = 0
Two solutions: 0x – 0.5y = 60

Answers

Answer 1

Answer:

One solution: 0x + 0.5y = 0

Step-by-step explanation:

9x + 4y = 36

6x + 2.5y = 24

2 * Eq. 1

18x + 8y = 72

-3 * Eq. 2

-18x - 7.5y = -72

Add the multiples of the equations.

0x + 0.5y = 0

Answer: One solution: 0x + 0.5y = 0

Answer 2

The linear combination that reveals the number of solutions to the system is as follows:

One solution: 0x + 0.5y = 0

The system of linear equation is as follows:

9x + 4y = 36

6x + 2.5y = 24

He multiplied the first equation by 2 and the second equation by –3. Therefore,

Combined equation:

18x + 8y = 72

-18x - 7.5y = -72

Therefore, let's add the equation

0x + 0.5y = 0

learn more on system of equation: https://brainly.com/question/2437164?referrer=searchResults


Related Questions

Help help correct answers only

Answers

72
is the circumference

Which of the following is equal to 42.736 ? Select all that apply

Answers

Answer:

sorry but i need more information on the question to answer it.

Step-by-step explanation:

Hope this helps you!

at the water treatment plant, a half empty tank is being filled with waste water at a rate of 850 gallons per minute. After 15 minutes the tank has 35,000 gallons of waste water. Write an equation in standard form that relates the amount of waste water in the tank, y , to the number of minutes, x, that the tank has been filling

Answers

Answer:

850x = y

Step-by-step explanation:

Trent buys a playground slide priced at $583. If the sales tax is 5%, how much tax will
Trent pay?

Answers

116.6 should be the answer

A small cup holds 75% as much as a large cup. If the small cup holds 36 units, how much does the large cup hold?

Answers

Answer:

48

Step-by-step explanation:

75/100 = 36/x

x = 48

Simplify:
(a^-2)^-3 divided by (a^5)^-1

Answers

Hi,

.

[tex]( { {a}^{b} })^{c} = {a}^{b \times c} [/tex]

.

[tex] \frac{ {a}^{b} }{ {a}^{c} } = {a}^{b - c} [/tex]

=>

[tex]\frac{ { ({a}^{ - 2} })^{ - 3} }{ { {(a}^{5}) }^{ - 1} } = \frac{ {a}^{ 6} }{ {a}^{ - 5} } = {a}^{ 11} [/tex]

.

.

I hope it helped ✅(•‿•)

Latisha works x hours each day. Demetrius works 1 more hour each day than Latisha.Which expressions both calculate the number of hours Demetrius works in a 5-day work week?

Answers

The expressions that calculate the number of hours that Demetrius works in a week are [tex]5(x+1)\text{ and }5x+5[/tex]

If Latisha works [tex]x[/tex] hours each day

Demetrius works one more hour than Latisha each day. Algebraically, Demetrius works [tex](x+1)[/tex] hours each day

So for a [tex]5[/tex]-day working week, Demetrius will work

[tex](x+1)+(x+1)+(x+1)+(x+1)+(x+1)\\=5\times (x+1)\\=5(x+1)hours[/tex]

If we remove the brackets, we have the equivalent expression

[tex]5(x+1)=5x+5[/tex]

So the expressions that calculate the number of hours that Demetrius works in a week are [tex]5(x+1)\text{ and }5x+5[/tex]

Learn more about word problems here: https://brainly.com/question/17067890

- Nelton spent $44.75 on 5 tickets to the football game.
What was the cost of one ticket?

Answers

Answer:

8.95

Step-by-step explanation:

when you divide it 44.75 divided by 5 it willl appeer the price of only one

Answer:

$8.95

Step-by-step explanation:

44.75/5=8.95

a wall that is 1.4m long has started lean and makes an angle of 80’o with the ground. A 2.0m board is jammed between the top of the wall and the ground to help prop the walk up. What angle does the board make with the
ground?

Answers

well i see that 1x 1 is 2 so that’s your answer!!!!!!!!!

The ratio of the number of pears to the number of apples in the basket was 3 : 5 After Sean ate 2 apples, there were still 2 more apples than pears. How many pears were there in the basket?

Answers

Answer:

 6 pears

Step-by-step explanation:

The difference in the number of ratio units is 5-3 = 2. This corresponds to an original difference of 2+2 = 4, so each ratio unit represents 2 pieces of fruit.

The original ratio is ...

  6 pears : 10 apples

There were 6 pears in the basket.

BRANLIEST FOR CORRECT ANSWER



Complete the pairs of corresponding parts if △RST ≅ △TXY.
∠S =

∠ TXY
∠ XTY
∠ XYT



Complete the pairs of corresponding parts if △RST ≅ △TXY.
∠STR =

∠ XYT
∠ TXY
∠ XTY



Complete the pairs of corresponding parts if △RST ≅ △TXY.
RS =

TX
XY
TY




Complete the pairs of corresponding parts if △RST ≅ △TXY.
ST =

TY
XY
TX





Complete the pairs of corresponding parts if △RST ≅ △TXY.
RT =

TX
XY
TY





Complete the pairs of corresponding parts if △ABD ≅ △EFC.
∠A =

∠ FCE
∠ FEC
∠ EFC





Why is ▲MAE ≅ ▲TON?

HL
HA
LL




All of the following are ways to prove triangles congruent except

SAS
SSA
ASA
SSS

Answers

Answer:

Step-by-step explanation:

△ RST ≅ △ TXY

We are given ΔRST and ΔTXY are congruent to each other.

If two triangles are congruent to each other then their corresponding parts are equal.

Please see the attachment of two triangles.

∠R is corresponding to ∠T

∵  ∠R=∠T By CPCT

∠XYT is corresponding to ∠STR

∵  ∠XYT=∠STR By CPCT

∠XTY is corresponding to ∠SRT.

∵  ∠XTY=∠SRT By CPCT

∠TXY is corresponding to ∠RST

∵  ∠TXY=∠RST By CPCT

CPCT: Congruent part of congruence triangle.

1 – 2x + 3y for when X = – 2 and y = – 5

Answers

Answer:

-12

Step-by-step explanation:

1-2x+3y

1-2(-2)+ 3(-5)

1-4-9

= -12

The cattle at the Clinton Farm are fed 1/4 of a bale of hay each day. The horses are fed 2 times as much hay as the cattle. How many bales of hay are the horses fed each day?

Write your answer as a fraction or as a whole or mixed number.

Answers

Answer:

1/2 of a bale

Step-by-step explanation:

1/4 times 2 equals 1/2

graph y= -4/3 x+2 using the slope and y-intercept

Answers

Answer:

i hope this helps or some-what helps

Step-by-step explanation:

13. Xander and Kennedy have a bet to see who can get more "friends" on a social media side after 1 month. Kennedy
has 11 more friends than Xander when they start the competition. After much work, Kennedy doubles her amount
of friends and Xander quadruples (4 times) his. In the end they have a total of 232 friends.

Answers

Answer:

Xander has 140 friends

Kennedy has 92 friends

Step-by-step explanation:

Let x represent # of friends Xander has at the start

Let x+11 represent # of friends Kennedy has at the start

Let 2(x+11) rep. the final # of friends Kennedy has

Let 4x rep. the final # of friends Xander has

Total = 232

So we just need to solve for x:

2(x+11) + 4x = 232

2x + 22 + 4x = 232

6x = 210

x = 35             < - This means that xander started with 4 friends.

Sub x to find friends for each:

4x = ?

4(35) = 140 friends

2(x+11) = ?

2(35+11) = 92

Which statements are true about the scatter plot? Select all that apply:
(Graph is attached)

A. Most players are between 60 & 70in tall
B. Players scored between 40 & 80 points
C. There is an outlier at about (70,23)
D. There is a weak positive association between height & points scored

Answers

Answer:Nooo please don’t put B. It’s A,C, and D

Step-by-step explanation:

PLEASE HELP. Select the correct shapes.
Select the shapes that are similar to shape A.

Answers

Answer:

There is only one shape who is similar to A which is the pink one.

Step-by-step explanation:

Which event is important enough to include in a summary of this
story? Add the event to the chart.
D Event
Event
Event
Hester gives Ms.
Walker the letter
explaining her idea.
Ms. Walker agrees
to consider
Hester's idea.
?
Hester repeats a
*) phrase in her mind
over and over.
D
Hester packs up
her things when
the bell rings.
D
Hester returns to
her desk to read
her book.
Hester learns
about another way
to boost her grade.

Answers

When making a summary, it is important to read and understand the text which you are writing.

What is a Summary?

This refers to the concise representation of the main points of a literary text without the use of bias.

Hence,w we can see that because the question is incomplete, you would need a general overview to understand it, so it would be best if you:

Read the given textUnderstand the plot and characterizationFollow the Rising Action, Climax, and Falling ActionList out the main pointsThen, join them in order of occurrence.

Read more about summary here:

https://brainly.com/question/25605883

#SPJ2

factor the expression 9x^2+4 explain your steps if not possible explain why not​

Answers

This expression doesn’t have a common factor.
Therefore it is not possible to solve.

PLZ HELP 100 POINTS AND BRAINLIEST PLZ HELP

Answers

Answer:

Step-by-step explanation:

number 6. (1-2+3)  - 4 + 5 = 3

Number 7. (1+2) +( 3+4 ) - 5 = 5

number 8. (1+2+3) - 4(5) = 10

5: (1+2)3 - 4 / 5 = 1

Answer:

5 --- 1 + 2 - 3 - 4 + 5 = 1

6 --- 1 - 2 + 3 - 4 + 5 = 3

7 --- [1 + (2 x 3 x 4)] / 5 = 5

8 --- [1 + 2 + (3 x 4)] - 5 = 10

Step-by-step explanation:

I didn't know if you needed brackets/parenthesis for the first two, that's just what I came up with

Simplify (5^3)^6 leaving your answer in index form.

Answers

Answer:

5^18.

Step-by-step explanation:

By the law of indices:

(a^b)^c = a^(bc)

So (5^3)^6

= 5^(3*6)

= 5^18.

Use the graph of △ABC with midsegments DE, EF and DF. Show that EF is parallel to AC and that EF=1/2 AC

Answers

According to the midsegment theorem, the midsegments are parallel to

and half the length of the opposite side.

The completed statement are as follows;

Because the slopes of [tex]\overline{EF}[/tex] and [tex]\overline{AC}[/tex] are both -4, [tex]\overline{EF}[/tex] ║ [tex]\overline{AC}[/tex]EF = [tex]\underline{\sqrt{17}}[/tex] and AC = [tex]\underline{2 \cdot \sqrt{17} }[/tex]Because [tex]\underline{\sqrt{17} }[/tex] = [tex]\underline{\frac{1}{2} \cdot 2 \cdot \sqrt{17} }[/tex], [tex]EF = \frac{1}{2} \cdot AC[/tex]

Reasons:

From the given graph of ΔABC, we have;

Coordinates of the points A, B, and C are; A(-5, 2), B(1, -2), and C(-3, -6)

The coordinates of the point D and E on [tex]\mathbf{\overline{DE}}[/tex] are; D(-4, -2), and E(-2, 0)

The coordinates of the point F is; F(-1, -4)

[tex]Slope, \, m =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

[tex]\displaystyle Slope \ of \ line \ \overline{AC} = \mathbf{\frac{(-6) - 2}{-3 - (-5)} = \frac{-8}{2}} = -4[/tex]

[tex]\displaystyle Slope \ of \ line \ \overline{EF} = \frac{0 - (-4)}{-2 - (-1)} = \frac{4}{-1} = -4[/tex]

[tex]Length \ of \ segment,\ l = \sqrt{\left (x_{2}-x_{1} \right )^{2}+\left (y_{2}-y_{1} \right )^{2}}[/tex]

Length of EF  = √((-1 - (-2))² + (-4 - 0)²) = √(17)

Length of AC = √((-3 - (-5))² + (-6 - 2)²) = √(4 × 17) = 2·√(17)

Therefore, we have;

Because the slope of [tex]\mathbf{\overline {EF}}[/tex] and [tex]\mathbf{\overline {AC}}[/tex] are both , -4, [tex]\overline {EF}[/tex] ║ [tex]\overline {AC}[/tex]. EF = [tex]\underline{\sqrt{17}}[/tex], and AC

= [tex]\underline{\frac{1}{2} \cdot 2 \cdot \sqrt{17}}[/tex],. Because [tex]\underline{\sqrt{17}}[/tex] = [tex]\underline{\frac{1}{2} \cdot 2 \cdot \sqrt{17}}[/tex], [tex]EF =\mathbf{ \frac{1}{2} AC}[/tex]

Learn more about midsegment theorem of a triangle here:

https://brainly.com/question/7423948

8. Select all the expressions that represent "10% more than x."
A. 10 + x
B. 0.10 + x
C. 0.1x + x
D. 0.1x + 10
E. 1.1x
F. X(1 + 0.1)

Answers

Answer:

B

Step-by-step explanation:

10/100 = /0.1. it should be more than x so add x to it to be 0.1+X

A recipe that makes 4 servings calls for Two-thirds cup of flour. How much flour is required to make 20 servings?
6 cups
3 and one-third cups
two-thirds cups
StartFraction 2 over 15 EndFraction cups


PLEASE HURRY ITS A TEST AND TIMED

Answers

The answer is 3 and one third!
20/4=5
(5*2)/3= 3 1/3

What is the initial value of the exponential function shown on the graph?
A : 0
B : 1
C : 2
D : 4

Answers

D. 4 This is where the exponential line on the graph hits the y axis.

Someone please help me!!

Answers

Answer:

answer attached: x = 5√2

Step-by-step explanation:

Answer:

Step-by-step explanation:

All of the right triangles are similar. This means ...

  long side / short side = x/2 = 25/x

Multiplying by 2x gives ...

  x² = 25·2

  x = (√25)(√2)

  x = 5√2

_____

Additional comment

The "geometric mean" of 'a' and 'b' is √(ab). With this in mind, you can see that x is the geometric mean of the lengths 2 and 25. This is always true for this right-triangle geometry.

There are two other geometric mean relations in this geometry, having to do with the other possible ratios of sides. In effect, the length of a segment that touches the hypotenuse (longest side) of the triangle is the geometric mean of the two segments of the hypotenuse it touches.

Left side = √(2·27) = 3√6

Bottom side = √(25·27) = 15√3

You are buying candles for an outdoor event. The candles you want come in boxes of 10, and you have enough money to purchase 20 boxes. How many candles can you buy?

Answers

Answer:

200 candles

Step-by-step explanation:

20*10 = 200

what does FSS stand for in math

Answers

Answer:

frequency-selective surface (FSS)

Mrs. Hill went to get an oil change, because she has a 20% off coupon. If the oil change is 35.00, how much is the discount?
In problem #1, how much does Mrs. Hill have to pay?

Answers

The discount is $7, and Mrs.Hill only has to pay $28.

Answer:

28.00

Step-by-step explanation:

John had $55. He spent $3 per day for nine days. Then he was given $12 to divide equally between himself and his two cousins. John used the following expression to calculate the amount of money he had after splitting the money with his cousins.

55 – 3 • 9 + 12 ÷ 3

Based on this expression, what is the amount of money John had remaining?
A.$160
B.$32
C.$24
D.$20

Answers

$32 bc he spent $3 per 9 days
Other Questions
What are the possible degrees for the polynomial function? Provide two positives and two negatives the Sarahs family would face if they switched to organic farming The length AB of a rectangle ABCD is 8cm and its diagonal BD and measures 10 cm Find its breadth BC Management uses a voucher system to help control and monitor cash payments. Identify the key documents that are part of a voucher system of control.a. Invoiceb. Outstanding checkc. Purchase orderd. Voucher PLEAS HELP ME NOW!!!!!! I WILL GIVE BRAINLIESTThe Pollution Problem by Roberto BererraUnfortunately, pollution is like air: its everywhere! Pollution is the introduction of harmful substances into the environment that can cause damage and harm to humans, animals, and the environment. It takes on a number of different forms, from chemicals and garbage to something as seemingly innocent as light or noise.Pollution comes from a variety of sources. In addition, it alters, changes, and even destroys a variety of places. For example, exhaust from cars pollutes the air. When it rains, runoff from fertilizers and pesticides, which farmers use to help crops grow, can pollute the water in oceans, rivers, lakes, and streams. Garbage dumped in landfills is not only an eyesore, but also a source of harmful gases that can damage the earths atmosphere. Light pollution, which comes in the form of bright streetlights or signs, disrupts the view of the night sky. Noise pollution caused by cars, trucks, and machines interrupts the natural sounds of the world around us, such as birds singing or leaves rustling.The types of pollution and their effects vary greatly. At the same time, however, they are related; each type of pollution affects the other types. An example of the connection between different types of pollution is acid rain. Acid rain is caused mostly by sulfur or nitrogen emissions given off by sources such as car exhaust and the burning of fossil fuels such as coal. These harmful chemicals rise into the atmosphere where they react with other compounds and then fall as an acidic form of rain, sleet, or snow. Acid rain damages plants and buildings, contaminates soil and water, and has a negative effect on animals, fish, and even humans.Pollution has other effects, too. Breathing toxic air or drinking polluted water can cause humans and animals to develop health problems that can be serious and sometimes deadly. The deaths of too many members of a certain species of animal can upset the local ecosystem, or the area in which they live. As a result, weather patterns and climates can also change.Though pollution is everywhere, there are ways to help prevent it. By walking or riding bikesinstead of driving carspeople can help decrease air pollution. People can also buy and eat organic foods to support farmers that do not use fertilizers on their crops. It is also a good idea to take old things that people intend to throw away and find new ways to use them. A great way to help the environment is to recycle. Save items like used paper, glass and plastic bottles, and metal cans. Then, take them to a recycling center where they can be turned into new products to be used again. Some cities and towns even have recycling programs in place so all you have to do is leave your recyclable items on the curb on a certain day each week. It doesnt get much easier to help the environment and reduce pollution than that!The statements below make persuasive appeals to the reader about the dangers of pollution. Some of the statements make appeals to logic (logos); some make appeals to emotion (pathos); and some make appeals to ethics or establish the authority of the speaker (ethos). Move each statement into the column that matches its type of appeal. reasons for collecting samples in a field study. how to solve the matrix equation for matrix Y.simplify all elements[tex]Y\left[\begin{array}{ccc}-1&-4\\0&-5\\\end{array}\right] = \left[\begin{array}{ccc}5&-5\\8&8\\\end{array}\right][/tex] Plsss help asap plsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss please answer this question!! Find the volume of a cone with aradius of 10 and a height of 7. Use 3.14 for n andround the answer to the nearest whole number. where is the pink lake situated ? Sydney finished all his work on time, but many of his teammates still struggled to complete their assignments. What should he do? a) Not to be distracted. They may lag further. q) listen to them complain about their workload c) help them complete their work d) share their thoughts on how to get their work done faster 2. Find F(x)+g(x)4 options to pick from Which word describes the human characters in this passage? beautiful dangerous playfulunpredictable Imagine Frankie has a computer with a full hard drive. She needs to create and save a new document, so she deletes a bunch of old files, then writes and saves the document. Describe how the OS interacts with the disk to allow the new file to be written. If the water level had raised ang higher, them dam would probably have broken Riverbend Inc. received a $240,000 dividend from stock it held in Hobble Corporation. Riverbend's taxable income is $2,710,000 before deducting the dividends received deduction (DRD), a $50,500 NOL carryover, and a $153,000 charitable contribution. Corporate Income Tax Rates Taxable Income Tax $50,000 15% of the taxable income $50,000-$75,000 $7,500 + 25% of taxable income over $50,000 $75,000-$100,000 $13,750 + 34% of taxable income over $75,000$100,000-$335,000 $22,250 + 39% of taxable income over $100,000$335,000-$10,000,000 $113,900 + 34% of taxable income over $335,000 $10,000,000-$15,000,000 $3,400,000 + 35% of taxable income over $10,000,000$15,000,000-$18,333,333 $5,150,000 + 38% of taxable income over $15,000,000Over $18,333,333 35% of the taxable incomea. What is Riverbends deductible DRD assuming it owns 11 percent of Hobble Corporation?b. Assuming the facts in part (a), what is Riverbends marginal tax rate on the dividend?c. What is Riverbends DRD assuming it owns 36 percent of Hobble Corporation?d. Assuming the facts in part (c), what is Riverbends marginal tax rate on the dividend?e. What is Riverbends DRD assuming it owns 89 percent of Hobble Corporation (and is part of the same affiliated group)?f. Assuming the facts in part (e), what is Riverbends marginal tax rate on the dividend? help me!!!!please help me solve this problem thank you so much Part 1 - Write the ingredients list to a file (10 points) Modify the program you developed for Lab 5 to make it output the data in the same format to a text file cake_ingredients_list.txt Note: Writing to a file is easier to code, so let's do that first. Hints: After the file has been opened, call the .write() function to write one line at a time to the file, in almost the exact fashion as calling print what is the definition of abuse