Test
Test
Active
1
2
3
4
5
TIME REMAINING
01:47:04
Which statement correctly explains how Andre could find the solution to the following system of linear equations using
elimination?
(85-9-15
(75-21-12
O Multiply the first equation by -7 and the second equation by 8, and then subtract
O Multiply the first equation by -7 and the second equation by 8, and then add.
O Multiply the first equation by 2 and the second equation by 9, and then add.
O Multiply the first equation by -2 and the second equation by 9, and then subtract.

Answers

Answer 1

Answer:3rd

Step-by-step explanation:

Answer 2

Answer:

C) Multiply the first equation by 2 and the second equation by 9, and then add.

Step-by-step explanation:


Related Questions

Idently the domain of the function
-5 0 All real numbers
All positive numbers

Answers

Answer:

13

Step-by-step explanation:

if you take the ideal number and multiply it with 12 the subtract 13 and add 1 and subtract seven the divide that by 11 and then Divid that answer by 17 and then you have your answer which is 13

Lea's school is selling tickets to the annual talent show. On the first day of ticket sales the school sold 12 adult tickets and 7 child tickets for a total of $236. The school took in $217 on the second day by selling 7 adult tickets and 14 child tickets. What is the price each of one adult ticket and one child ticket?

Answers

Answer:

Step-by-step explanation:

let the number of children be x

and the number of adults be y

so

7x+12y=236-----1

and

14x+7y=217------2

equating both 1 and 2 we have

7x+12y=236-----1

14x+7y=217------2

multiply 1 by 2

subtract 2 from 1 we have

  14x+24y=472-----3

 - 14x+7y=217------2

    0x+17y=255

17y=255

y=255/17

y=15

put y=15 in eqn 1 we have

7x+12y=236-----1

7x+12*15=236-----1

7x+180=236-----1

7x=236-180

7x=236-180

x=56/7

x=8

therefore a child will cost $8 and adult will cost $15

evaluate each expression 5(10-1)

Answers

Answer:

the answer is 45 if its is what you need

Step-by-step explanation:

i got 100 on test and had that question

Solve for y in the following equation.

Answers

Yes you’re almost there the answer is negative 9

Answer: The last one.... -9

hope this helped :>

1 What is the nature of the roots of the quadratic equation if the value of its discrimman
is zero?
The roots are not real
o the roots are rational and not equal
b. The roots are irrational and not equal d the roots are rational and equal
2. Whal is the ans of symmetry of the parabola y​

Answers

Answer:

If d is zero, both roots are rational and equal.

Step-by-step explanation:

Quadratic Equations

The standard representation of a quadratic function is:

[tex]f(x)=ax^2+bx+c[/tex]

where a,b, and c are constants.

Solving with the quadratic formula:

[tex]\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}[/tex]

The discriminant is defined as:

[tex]d=b^2-4ac[/tex]

The sign of the discriminant defines the nature of the roots of the quadratic equation as follows:

If d is positive, both roots are real and differentIf d is negative, both roots are imaginary and conjugateIf d is zero, both roots are rational and equal.

yoooo can someone help meeee thanks In advance

Answers

Answer:

The slope of F = 5.

Not 100% sure.

One positive integer is 18 more than a second positive integer. If the sum of twice the greater and three times the smaller is 86, find the larger integer

Answers

Step-by-step explanation:

euuruuryduduehehehdhddhdu

This diagram of a rectangular city park was drawn using a scale of 1 centimeter to 20 meters

(In the diagram shown, assume each square on the grid is 1 centimeter in length.)

What is the area, in square meters, of the actual park?

What is the scale factor?

Answers

Answer:

Scale factor for the drawing from actual park = [tex]\frac{1}{20}[/tex]

Area of the actual park = 1200 cm²

Step-by-step explanation:

Length of the rectangular city park = 5 cm

Width of the rectangular park = 6 cm

Using scale factor 1 cm = 20 meters

Scale factor = [tex]\frac{\text{length of the park in drawing}}{\text{Actual length of park}}=\frac{1}{20}[/tex]

[tex]\frac{5}{\text{Actual length of park}}=\frac{1}{20}[/tex]

Actual length = 5 × 20 = 100 meters

Actual width = 6 × 20 = 120 meters

Area of the rectangular park = length × width

                                               = 100 × 120

                                               = 1200 square meters

Therefore, Scale factor from actual length to the length in drawing = 1 : 20

Area of the rectangular park = 1200 square feet

HELP ASAPPPPP mL ABC=117 -> Find mL CBD

Answers

Answer:

The answer is 77 degrees

buses to ayton leave the station every 25 mins, buses to bleeford leave the station every 40 mins, buses at both places leave at 9am. what is the next time buses to ayton and bleeford leave the station together??

Answers

Answer:12:20

Step-by-step explanation:

40*5=200min

25*8

3hr and 20 min

What is the best first step to solve the inequality 5x – 3 ≥ 2?

Answers

Do the Math is Easy man!!!

Answer:

add 3

Step-by-step explanation:

trust me

I need help? I don’t know what to dooooooo

Answers

Your suppose to graph where the line is

Write the following equation in slope intercept form.

x-2y=42

y=__ x+__

Answers

Answer:

Blank 1: 1/2

Blank 2: -3

Step-by-step explanation:

Find he percent of change from 1250 to 1,755mi

Answers

28.7749% increase because

1250/1755 = .7122
.7122 *100 = 71.22%
100 - 71.22 = 28.7749

In February, you have a balance of $135 in your bank account. Each month you deposit $45. Write an equation to describe the situation.

Answers

Answer:

135+45x

Step-by-step explanation:

6666666666666666666666666666666


Solve x^2 = 64, where x is a real number.
Simplify your answer as much as possible.
If there is more than one solution, separate them with commas.
If there is no solution, click on "No solution".

Answers

Answer:

x=8

Step-by-step explanation:

8 times 8 equals 64

State the horizontal asymptote of the rational function.
f(x) = x^2 + 9x-9/x-9

Answers

Answer:

no horizontal asymptote

2. In right triangle RST with right angle S the m4R = 24°. What is the
measure of T?*
о
24°
O 56°
0 66°
O 116°

Answers

Sum of the interior angles of any triangle equal 180° ;

So :

90° + 24° + T = 180°

114° + T = 180°

subtract both sides 114

T = 180° - 114°

T = 66°

_________________________________

And we're done....

♥️♥️♥️♥️♥️

1 11. What is the constant of proportionality? y = 8x​

Answers

Answer:

-8

Step-by-step explanation:

lere

the answer to this is 8

Find the average rate of change for the function over the given interval.
2) y = 6x3 - 6x2 - 8 between x = 2 and x = 4

Answers

Answer:

132

Step-by-step explanation:

The average rate of change over a function can be given by: f(b)-f(a)/b-a. Where b is the second part of the interval and a is the first part.

y = 6x^3-6x^2-8

____

x = 2

6(2)^3-6(2)^2-8

6(8)-6(4)-8

48-24-8

24-8

16

____

x = 4

6(4)^3-6(4)^2-8

384-96-8

288-8

280

_____

280-16/4-2 = 264/2 = 132

if pooh bear got a bucket of honey and hops got one how much do I need to steal from hops >;3

Answers

Answer

all of it

Step-by-step explanation:

Answer:

one bucket/all of it

Step-by-step explanation:

PLEASE HELP ME!!! Question says complete the table!

Answers

Answer:

8000•1.05 8000(1.05)¹

(8000•1.05)•1.05 8000(1.05)²

((8000•1.05)•1.05)•1.05 8000(1.05)³

(((8000•1.05)•1.05)•1.05)•1.05 8000(1.05)⁴

8000(1.05)^t

Question 2 What is the slope and y intercept of 4x + 6y = -20? ​

Answers

Answer:

Slope is -2/3. The y - intercept is -10/3.

Step-by-step explanation:

Simplify the equation by using division property of equality.

1)
What number is 4 times as many as 25?

Answers

Answer:

100

Step-by-step explanation:

1. Yearly membership with the online music club costs $48. Members pay $0.99 per song to download music. Nonmembers may download songs for $1.29 each.

Answers

Answer:

160 musics

Step-by-step explanation:

let the total amount/charges be y

let the number of musics be x

For members total

y=48+0.99x-------1

For non-members total

y=1.29x-------------2

we are expected to solve for the number of music where members and non members get to pay the same amount

equating 1 and 2 we have

48+0.99x=1.29x

48=1.29x-0.99x

48= 0.3x

x=48/0.3

x=160 musics

Simply the expression


-8 (5b + 2 ) - 7 ( b -5 ) .




help please

Answers

Answer:

= −47b + 19

Step-by-step explanation:

A purse is on sale for $25.60. If the original price of the purse was $32.00,what is the percent of discount?

Answers

Answer:

20%

Step-by-step explanation:

The dollar amount of the discount is $32.00 - $25.60 = $6.40

Now we need to find what percent of $32.00 is $6.40.

To find what percent a part is from a whole, divide the part by the whole and multiply by 100%.

percent = part/whole * 100%

part = $6.40

whole = $32.00

percent = $6.40/$32.00 * 100%

percent = 20%

help!!!!!!!!!!!!!!!!!!!

Answers

Answer:

154/350 = n/100

n = 0.51333 or 51.333% (I don't know what decimal your class rounds to but it is 3 repeating)

Jay won 51.333% of the solitaire games he played. Hope this helps!!

Step-by-step explanation:

Which shows the algebraic representation of the phrase and its value when n=4.27
"twenty-eight plus the product of five and a number

Answers

28 + (5•n)
28 + (5•4.27)
28 + (21.35)
28 + 21.35
49.35

PLEASE help me with this equation ​

Answers

Answer:

1/25

Step-by-step explanation:

I worked out the equation!

1/2 is the answer ..................
Other Questions
Compltez: Fill in the blanks with the correct forms of the verbs in the list.demanderdonnerchouercouterenseignerexpliqueroubliertrouverM. Garnier (1) ________ la physique au lyce. C'est un excellent professeur! Il (2) ________ bien la leon et les lves (3) ________ toujours avec beaucoup d'intrt (interest). Il ne (4) ________ pas beaucoup de devoirs mais on (5) ________ rarement son (his) cours. Mes copains et moi, nous (6) ________ ce cours super! The diameters of trees at a nursery are Normallydistributed with a mean of 2.5 inches and a standarddeviation of 0.5 inches.X-Calculate the Z-score for a tree that has a diameter of1.83 inches. Round the Z-score to the nearesthundredth, if necessary.The Z-score for a tree that has a diameter of 1.83 inchesis about...? Heather solved this problem:75 is 300% of what number?Part0 75300What error did Heather make?None. Her work is correct.O She multiplied 75 and 4 incorrectly.She should have divided 75 by 4, and divided 100by 4.O She used the part, 75, to write the percent ratio.300The part-to-whole percent ratio is 100?1000Wholepartwhole75 x 4 300100 x 4 400 Please help! Due tomorrowHow did the filibusters take advantage of the rebellion in Texas in early 1800's for their own purposes? A. Identify each of the three population pyramid shapes by describing the demographic features it represents. Then, give an example of a country that could currently be plausibly represented by it.B. Explain how a population pyramid can be used to:demonstrate demographic transition.identify migration transition patterns.project a countrys future needs. ancy operates a business that uses the accrual method of accounting. In December, Nancy asked her brother, Hank, to provide her business with consulting advice. Hank billed Nancy for $8,700 of consulting services in year 0 (a reasonable amount), but Nancy was only able to pay $5,200 of the bill by the end of this year. However, Nancy paid the remainder of the bill in the following year. a. How much of the $8,700 consulting services will Hank include in his income this year if he uses the cash method of accounting i need it fast im timedAs described in Harriet Tubman: Conductor on the Underground Railroad, Tubman dedicated her life tohelping change the views of slave owners.helping change laws about slavery.helping enslaved people escape.helping her family escape slavery. A business buys $5000 worth of resources to produce a good. The business makes 100 units of the good and each of them sells for $65. The value added by the business to these products is:a. $5,000 b. $6,500 c. $1,500 d. $1,000 Why is it important to proofread your documents ? What motivated Spanish missionaries to strengthen their commitment to convert the plains Indians to Christianity?a.Native American violence and resistance.b.Native American peace and acceptance.c.The success of San Sab mission.d.The success of the San Xavier missions. please help .w. Im not smart- CAN SOMEONE PLS HELP ME The series of steps in which a large fish eats a smaller fish that has eaten algae is a Please help me with 1-10!!!! 1. PART A: Which of the following identifies the author's main claim in thetext? *5 pointA. America's social and political system is designed so no one can succeed, andtherefore should not be a model for other nations.B. The perfect society is not attained by eliminating inequalities, as inequality inspiresthe competition that results in progress.C. While America's democratic system is flawed, all citizens will be able to achievesuccess once inequalities are eliminated.D. Americans are not always happy in their democratic society because thewidespread equality that it secures them prompts them to want more. What is a plan for how much to spend and how much to save of ones earnings called?A. a wish list B. a personal budget C. a saving account D. an investment portfolio EDIT!! : The answer is...B. If anyone needs it! Got it right :)) FREE ANSWER AND POINTS I GUESS? :DDI know the passage is VERY long!! Sorry.One of the French experts, Sylvestre de Sacy, started with the proper names in the Greek passage and tried to find their equivalents in the demotic version. He believed that, after hed singled out the names, he would be able to identify the demotic letters in each of them. With these letters in hand, he could then go on to translate other names and words in the demotic passage.But the process proved to be much more difficult than de Sacy had anticipated. He succeeded in isolating the groups of demotic letters for the names of Ptolemy and Alexander, but found it impossible to identify the individual letters in the names. Eventually he gave up, saying, The problem is too complicated, scientifically insoluble.A pupil of de Sacys, the Swedish diplomat Johan Akerblad, made better progress. Akerblad managed to locate in the demotic passage all the proper names that occurred in the Greek. From them he constructed a demotic alphabet of twenty-nine letters, almost half of which later proved to be correct. One of the French experts, Sylvestre de Sacy, started with the proper names in the Greek passage and tried to find their equivalents in the demotic version. He believed that, after hed singled out the names, he would be able to identify the demotic letters in each of them. With these letters in hand, he could then go on to translate other names and words in the demotic passage.But the process proved to be much more difficult than de Sacy had anticipated. He succeeded in isolating the groups of demotic letters for the names of Ptolemy and Alexander, but found it impossible to identify the individual letters in the names. Eventually he gave up, saying, The problem is too complicated, scientifically insoluble.A pupil of de Sacys, the Swedish diplomat Johan Akerblad, made better progress. Akerblad managed to locate in the demotic passage all the proper names that occurred in the Greek. From them he constructed a demotic alphabet of twenty-nine letters, almost half of which later proved to be correct. According to the passage, how did de Sacy and Akerblad influence each others work?A. De Sacy was able to build on Akerblads work and make a demotic alphabet.B. Akerblad built on de Sacys work and made a demotic alphabetC. Akerblad and de Sacy worked together to make a twenty-nine-letter demotic alphabet.D. De Sacy was able to fix many mistakes that Akerblad made Help me pleaaaaaaassssssssseeeeeeee Once upon a time there was an old Sow with three little Pigs, and as she had not enough to keep them, she sent them out to seek their fortune.The first that went off met a Man with a bundle of straw, and said to him, "Please, Man, give me that straw to build me a house"; which the Man did, and the little Pig built a house with it. Presently came along a Wolf, and knocked at the door, and said, "Little Pig, little Pig, let me come in."To which the Pig answered, "No, no, by the hair of my chinny chin chin.""Then I'll huff and I'll puff, and I'll blow your house in!" said the Wolf. So he huffed and he puffed, and he blew his house in, and ate up the little Pig. A. the old Sow B. the little Pig C. the Man D. the Wolf Johnny scored a 75% on his math test. He got 18 questionscorrect. How many questions were on the test? * HELP ASAP, BIG TEST! When f(c)= 10x^2 + 3x -4, evaluate f(-4)