To solve the system of linear equations 3 x + 5 y = 2 and 6 x + 10 y = 8 by using the linear combination method, Laura correctly multiplied the first equation by –2 to get Negative 6 x minus 10 y = negative 4 and then correctly added the equations Negative 6 x minus 10 y = negative 4 and 6 x + 10 y = 8 to get 0 = 4. How many solutions are there to the system of equations?
0
1
2
4

Answers

Answer 1

Answer:

x = 1

y = 1/5

Step-by-step explanation:

Given the system of linear equations

x + 5 y = 2 .... 1 ×2

6 x + 10 y = 8 .... 2×1

___,_______

2x+10y = 4

6x+10y = 8

Subtract

2x-6x = 4-8

-4x = -4

x = 1

Substitute x =1 into 1

x+5y = 2

1+5y = 2

5y = 2-1

5y = 1

y = 1/5

Hence the solution to the system of equation is (1, 1/5)

Answer 2

Answer:

is a:0

Step-by-step explanation:

those linear lines will never intersect


Related Questions

Round 14.6837 to the nearest HUNDREDTHS

Answers

Answer:

it's 14.68

Step-by-step explanation:

Answer:

14.68

Step-by-step explanation:

1|4|.|6|8|3|7

1=tens

4=ones

.=decimal

6=tenths

8=hundreths

3=thousanths

7=ten thousandths

3 is less than 5 so 8 stays the same

The radius of circle is 9. Using pie, which equation expresses the ratio of the circumference of the circle to the circle's
diameter?

Answers

Answer:

B) C/18 = PI

Step-by-step explanation:

C = PI * Diameter

C = PI * 2R

C = PI * 18

C/18 = (PI * 18)/18

C/18 = PI

what is 3v+h v=5 h=10 which is what​

Answers

Answer:

25

Step-by-step explanation:

3(5)+10 = 15 + 10 = 25

Find x and y. please help​

Answers

Answer:

[tex] x = 4 \sqrt{2} [/tex]

[tex] y = 4 \sqrt{6} [/tex]

Step-by-step explanation:

[tex] \sin 45 \degree = \frac{x}{8} \\ \\ x = 8 \sin 45 \degree \\ \\ x = 8 \times \frac{1}{ \sqrt{2} } \\ \\ x = \frac{8 \sqrt{2} }{2} \\ \\ x = 4 \sqrt{2} \\ \\ \\ \tan 30 \degree = \frac{x}{y} \\ \\ \frac{1}{ \sqrt{3} } = \frac{4 \sqrt{2} }{y} \\ \\ y = 4 \sqrt{6} [/tex]

Find the perimeter of an equilateral triangle that has an attitude of 25 inches. Round your answer to the nearest 10

Answers

9514 1404 393

Answer:

  86.6 inches

Step-by-step explanation:

The side length of an equilateral triangle is 2/√3 times the altitude. So, the perimeter is ...

  P = 3s = 3(25)(2/√3) = 50√3 ≈ 86.6 . . . . inches

Yoli survey 100 people in your school and ask them if
thely feel your school has adequate parking. Only 30%
of the sample feels the school has enough parking. If
you have 728 students total in your school, how many
would you expect out of all the student body that felt
there was enough parking?

Answers

Answer:es, theoretically you would expect to roll only eight 5s. 3. You survey 100 people in your school and ask them if they feel your school has adequate parking. Only. 30% of the sample feels the school has enough parking. If you have 728 students total in your school, how many would you expect out of all the student body that ...

Step-by-step explanation:

can someone help me on this and plz explain

Answers

The answer is c, the -2 stand for the y intercept which is the point on the y vertical line, it then decreases by 3 units because of the -3 slope.

1. Points A and B are to be mapped onto a number line according to two equations. The solution to the equation 2 24 3 A   is the coordinate of point A. The solution to the equation 20 0.2 B   is the coordinate of point B.


(a) Solve the first equation to find the coordinate of point A. Show your work. (


b) Solve the second equation to find the coordinate of point B. Show your work.


(c) Determine the distance between points A and B. Explain.

PLZ HELP!! ASAP

Answers

Answer:

A.    2.11.5 B. 31

Step-by-step explanation:

2.11.5                          B.31

Answer: A) 2/3 * 24/1 = 2/1 * 8/1 = 16/1 = 16

 B) 20 = -B/0.2  

 20 * 0.2 = 4

 C) The distance between the two points is 20, if the point for a is 16, and the distance for b is 4, you would have to add those two together and get 20.

Step-by-step explanation:

You put $300 at the end of each month in an investment plan that pays an APR of 7%. How much will you have after 18 years? Compare this amount to the total deposits made over the time period.

Answers

Answer:

take 300 time 12 months. take that nber times 18 years. then times that number by .07.

all together there is almost a $5000 difference. that is almost the total of having put 300 in the account for another 2 years without the apr

Step-by-step explanation:

Answer:

The answer is 129,216.31. Hope it helps

Step-by-step explanation:

What in a region can be affected by latitude, topography, altitude and closeness to a large body of water, jet streams and surface currents?

Answers

Answer:

Hey!

Step-by-step explanation:

Latitude, or how far one is from the equator, greatly affects the climate and weather of an area. If you live close to the equator, the climate will be warmer, while moving north or south from the equator brings a cooler climate. Altitude, or how high one is above sea level, has a similar effect–the higher the elevation, the colder the climate.

Hope this helps! :)

Have a nice day♥

Lol i dont know if im right but can someone explain it to me please and thanks man

Answers

Answer:

The correct answer would be A.

Step-by-step explanation:

You're right because the translation would make it so the circles have the same center. Because they have the same center it would be easier to see the correlation between them.

I hope this helps!!

the answer for this problem is A

fractionsss
15/7 = 2 1/7 right?

Answers

Answer:

Yepp!!

Step-by-step explanation:

[tex]\frac{15}{7}[/tex] = 2[tex]\frac{1}{7}[/tex]

repost, algebra help needed please

Answers

Answer:

y- intercept = [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Given

f(x) = [tex]\frac{1}{2}[/tex] [tex](6)^{x}[/tex]

To find the y- intercept let x = 0 , then

f(0) = [tex]\frac{1}{2}[/tex] [tex](6)^{0}[/tex] [ [tex]6^{0}[/tex] = 1 ]

      = [tex]\frac{1}{2}[/tex] × 1 = [tex]\frac{1}{2}[/tex] ← y- intercept

Lucy spent a total of $6.60 on 5 apples and a package of grapes. If the package of grapes cost $2.35, how much did each apple cost? Do not put a $ in your answer.

Each apple costs $

Answers

3 plus tax

Step-by-step explanation:

x^2 = -8x - 7 Rewrite the equation by completing the square. What are the solutions?

Answers

1) rewrite the equation by completing the square

(X+4)^2=9

2) what are the solution to the equation

Answer A= X=-4 plus and minus 3

The main mast of s sailboat is supported by a rope that extends from the top of the mast to the deck. If the mast is 23 feet tall and the rope attaches to the deck 15 feet away from the base of the mast, how long is the rope? ​

Answers

Answer:

27.46

Step-by-step explanation:

whats 8/7 as a decimal?

Answers

What 8/7 as a decimal is 1.14285…

A car dealership sells sedans and SUVs. In 2000, the ratio in which they were sold was 5:4. By 2010, the dealership had adjusted its inventory to a 2:7 ratio. If it sold 84 SUVs in 2010, how many sedans did it sell in 2000?

Answers

Answer:

60 sedans

Step-by-step explanation:

The computation of the number of sedans sold in 2000 is given below:

Given that

The ratio of sedans and SUV is 5:4

And, in 2010 its ratio is 2:7

Now in 2010, 84 SUVs sold

So

84 SUVS = 7

For total 9, it would be

= 84 × 9 ÷  7

= 108 vehicles

Now the number of sedans is

= 108 × 5 ÷ 9

= 60 sedans

helllllllllpppppp!!!!!!

Answers

Drop=decent
Effort=exertion
Wrapped=enveloped
Move=maneuver

At Jefferson Middle School, eighty-two students were asked which sports they plan to participate in for the coming year. Twenty students plan to participate in track and cross country; six students in cross country and basketball; and eight students in track and basketball. Twelve students plan to participate in all three sports. A total of thirty students plan to participate in basketball, and a total of forty students plan to participate in cross country. Ten students don't plan to participate in any of the three sports.

How many students plan to just participate in track?

Answers

Answer:

20

Step-by-step explanation:

3. I NEED HELP ASAP!! PLEASE PUT AND ANSWER AND STEP BY STEP EQUATION!! IF YOU DON'T KNOW THE ANSWER DON'T PUT ANYTHING!!

Write a rule for the linear function shown in the graph.


A. y = 5/3x + 1

B. y = 3x - 1

C. y = 2/5x + 1

D. y = -5/2x - 1

Answers

Answer:

D. y= -5/2x - 1

Step-by-step explanation:

Hope this helps. Sorry if it doesn't

A party cap is in the form of a frustum. The radii of its ends are 10cm and 30 cm. The volume of the cap is 9100. What is the height of the cap?

Answers

Answer:

4.46cm

Step-by-step explanation:

Volume of a frustum is expressed as;

V = (1/3) * π * h * (r₁² + r₂² + (r₁* r₂))

h is the height of the frustum

r₁ and r₂ are the radii of its ends

V is the volume

Given

V = 9100cm₃

r₁ = 10cm

r₂ = 30cm

Substitute

9100 = (1/3) * (3.14) * h * (10² + 30² + (10* 30))

9100 = 1/2(3.14)*h*(100+900+300)

9100 = 1.57*h*(1300)

9100 = 2,041h

h = 9100/2,041

h = 4.46cm

Hence the height of the cap is 4.46cm

There is a proportional relationship between the number of cookies and the number of packages 25 20 Number of Cookies 15 10 5 Number of Packages What is the constant of proportionality​

Answers

I feel the answer would be B

Step-bystep explanation:

What is on the twentieth floor .it goes Down 11 floors and then up 5 floors what floor is the elevator now

Answers

Answer:

6th floor

Step-by-step explanation:

what is the least common multiple (LCM) of 5 and 7 plz help need my grades up​

Answers

Answer:

The least common multiple of 5 and 7 is 35

Step-by-step explanation:

Because 5 x 7 is 35

Answer:

The Least common multiple ( LCM) of 5 and 7 is 35

Step-by-step explanation:

We list the first few multiples of 5 and 7a and identify the common multiples .

The least among the common multiples is the LCM of 5 and 7.

LCM 5 and 7

Multiples of 5: 5,10,15,20,25,30,35,40,45

Multiples of 7: 7,14,21,28,35,42,49

The Least common multiple of 5 and 7 is 35 .

l hope it helps

Which set of ordered pairs (x, y) could represent a linear function?
A = {(3,5), (5,1), (7, -2), (9,-6)}
B = {(2,-5), (5,1), (6,3), (7,6)}
C = {(-4,3), (-2,0), (0, -4), (2, –7)}
D = {(-3,7), (-1,5), (1,3), (3, 1)}

Answers

Answer = C

because all are not in set pairs only no. C is pair of set

Amy's fish tank has 16 liters of water in it. She plans to add 6 liters per minute until the tank has more than 88 liters. What are the possible numbers of minutes Amy could add water?

Answers

Answer:

12 minutes till 88 liters

Step-by-step explanation:

1. The Clock
[tex] \sqrt{81} [/tex]

Answers

Answer 9


Explanation I think

plz need help



how much black hole required force
solve by using theory of relativity ​

Answers

Answer:

Solving the Equations of General Relativity for Colliding Black Holes

TOPICS:AstronomyAstrophysicsBlack HoleGeneral RelativityPopularTexas Advanced Computing CenterUniversity Of Texas At Austin

By UNIVERSITY OF TEXAS AT AUSTIN NOVEMBER 8, 2020

A single card is drawn from a standard 52 card deck.
Work out the probability of choosing the "6 of hearts".
Give your answer in its simplest form.
Please anwer this in SIMPLEST FORM!

Answers

Step-by-step explanation:

probability of 6 of hearts = 1/52

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you.

Other Questions
Determine whether the following statement is true or false: The dividend discount model indicates that the value of a stock is the present value of the dividends it will pay over the investor's horizon, plus the present value of the expected stock price at the end of that horizon. Consider the following computational problems:EQDF A = {hA, Bi | A and B are DFAs and L(A) = L(B)}SUBDF A = {hA, Bi | A and B are DFAs and L(A) L(B)}DISJDF A = {hA, Bi | A and B are DFAs and L(A) L(B) = }.Prove that SUBDF A and DISJDF A are each Turing-decidable.You may (and should) use high-level descriptions of any Turing machines you define. Make sure to provide both a machine definition and a proof of correctness A stock has a beta of 1.28 and a reward-to-risk ratio of 5.89 percent. If the risk-free rate is 4.3 percent, what is the stock's expected return?Multiple ChoiceO 11.84%O 10.36%O 10.93%O 11.38% O 124% What is a contra (offset) technique used for?A. Free assetsB. Stockholders' equityC. Unsecured liabilities with priorityD. None of the foregoing QUESTION 9 The Falkirk Wheel makes ingenious use of a. Fermat's Principle b. Pascal's Principle c. Bernoulli's Principle d. The Principle of Parsimony e. Archimedes' Principle QUESTION 10 The approximate mass of air in a Boba straw of cross sectional area 1 cm2 that extends from sea level to the top of the atmosphere is a 1000 kg 6.0.1 kg c. 10 kg d. 1 kg e. 100 kg the length of eagle trail is 6 3/5 miles. the length of bear trail is 2 7/10 miles. what is the difference between length between eagle and bear trail? A logistics manager is in charge of managing ________ related to the incoming flow of resources that a company needs to produce its goods or services. a compression ignition engine has a top dead center volume of 7.44 cubic inches and a cutoff ratio of 1.6. the cylinder volume at the end of the combustion process is: (enter your answer in cubic inches to one decimal place). convert the average p-wave speed you found in part b (480 km/min) from km/min to km/sec. Last month, Abella paid $2. 40 for a dozen eggs at the grocery store. This month, due to a shortage at the same grocery store, Abella pays $3. 00 for a dozen eggs an ac voltage of peak value 89.6 v and frequency 49.5 hz is applied to a 23 f capacitor. what is the rms current? Still consider using anomaly detection for intrusion detection. Let's analyze a case. Suppose Alice's computer has 4 files (not realistic but for easy calculation...), and here are some data: Fo F1 F2 F3 Filename Over time Access Rate (On) 0.2 0.1 0.4 0.3 Recent Access Rate (Rn) 0.15 x 0.45 Y Suppose ER=0(On Rm) < 0.1 means normal 1. (1.5 pts) Give an example X & Y so the recent access rate will be considered abnormal. Show the equation you used to get your X & Y. 2. (1.5 pts) How much to differ on average for each file at the maximum so that it won't trigger an alarm while "working" towards Trudy's desired frequency? Show your equation used. Edit View Insert Format Tools Table 12pt Paragraph | B BI U Av av TP w : Questiestion 5Theframes.O riggingdescribes the addition of the cinematographic cues that the animator aO model sheetO music bedO visual treatment historically, demand has averaged 6105 units with a standard deviation of 243. the company currently has 6647 units in stock. what is the service level? The double dot plot blow shows the quiz scores out of 20 points for two different class periods. Compare the centers and variations of that two populations. Round to the nearest tenth. Write an inference you can draw about the two populations given the least squares regression line y hat= -2.88 1.77x, and a coefficient of determination of 0.81, the coefficient of correlation is: safety: while setting up a micro-boiling point determination you accidently break a capillary tube. you should: Suppose a variable is normally distributed, with mean 248.3 and standard deviation 22.8. A. What is P(200 X 5300)? Select B. What is Plx 2 275)? Select C. What x-values are in the top 10%? I Select Question 15 2 pts Suppose a variable is normally distributed, with mean 248.3 and standard deviation 22.8. A. What is the standard error for a sample of 100? Select] B. What is the probability a sample of 100 will have a sample mean of 240 or less? Select Question 16 3 pts The average weight of an adult male Maine Coon cat is 20 pounds with standard deviation 3.5 pounds. What is the probability an adult male Maine Coon will weigh: A. less than 20 pounds? [ Select B. more than 25 pounds? [ Select C. What are the weights of the heaviest 5% of adult male Maine Coons? [Select Which list shows the compounds in order from most acidic to least acidic? (A) 3>2> 1 (C) 3>1>2 HCC C-H 2 HCO-H 3 H3CHN-H (B) 2>1>3 (D) 1>3>2 Which of the following would be classified as a vascular plant?a. a portobello mushroomb. peat mossc. algaed. a rosebush