Mathematics High School

Solve the following system by substitution.
22.
X + 2y = 0
-3-4=-2
4y = -2
A (2, -1)
B. (2, 1).
C. (4, -1)
D. (-2, -1)

Answers

Answer 1

Answer:

D

Step-by-step explanation:

surely and i think it's correct

Answer 2

Answer:

D is the correct answer

Step-by-step explanation:

Related Questions

he difference of two numbers is 841. The smaller of the numbers is 471. What is the other number?

Answers

Answer:

The answer is 1,312

Step-by-step explanation:

Trust me its correct

pls mark me as brainliest

1-2 Write an equation for each situation.
1. A bookstore ordered boxes of pencils for resale. The cost of the pencils was
$2.25 per box, and the shipping cost of the order was $2.80.

Answers

Answer:

y = 2.25x + 2.80

Explanation:

$2.25 dollars per box.

$2.80 Shipping is always added.

Please help me with this problem

Answers

Answer: 66 degrees

Let's solve your equation step-by-step.

7x+3+x+55=14x−5+x

Step 1: Simplify both sides of the equation.

7x+3+x+55=14x−5+x

7x+3+x+55=14x+−5+x

(7x+x)+(3+55)=(14x+x)+(−5)(Combine Like Terms)

8x+58=15x+−5

8x+58=15x−5

Step 2: Subtract 15x from both sides.

8x+58−15x=15x−5−15x

−7x+58=−5

Step 3: Subtract 58 from both sides.

−7x+58−58=−5−58

−7x=−63

Step 4: Divide both sides by -7.

−7x

−7

=

−63

−7

x=9

7(9) + 3

63 +3

<U = 66

Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice. A. ​(f​g)(x) ​= nothing ​(Simplify your ​answer.) B. ​(f​g)(x) does not exist. Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice. A. ​(f​g)(​) nothing ​(Simplify your​ answer.) B. The value for ​(f​g)(​) does not exist. Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice. A. ​(x) ​= nothing ​(Simplify your ​answer.) B. ​(x) does not exist. Click to select and enter your answer(s) and then click Check Answer.

Answers

Answer:

b

Step-by-step explanation:

Solve x4 - 34x2 = -225

Answers

Answer:

x= -5,5 and -3,3

Taking the square root is the blank of squaring the number

Answers

Answer:

Step-by-step explanation:

opposite

NEED HELP ASAP
Amy incorrectly says that this product is 15/77. What is the correct​ product? What was Amy​'s likely​ error?

Answers

Answer:

likely error she made was saying 77 divided by 15

Solve for x. I really need help!

Answers

Answer:

9

Step-by-step explanation:

Please give me brainliest.

How would you do this and how would you graph it on a number line

Answers

Answer:

k=-5,5

Step-by-step explanation:

first you calculate (by switching  the -6 to the other side)

|k|<-1+6

second you add the -1+6 and get |k|<5

the other part will be that the |k| will turn to - negative.

now you will have -k<5 then not you have to take the negative of -k to only have, (k<-5), k equalling to -5.

But remeber you always flip the < to > when you have the greater-to-equal sign or less-to-equal sign.

Alunch bill cost $72. If you leave your server a 20% tip how much will you be leaving as the tip?

Answers

Answer: $14.4

Step-by-step explanation:

To calculate the tip, you need to multiply the bill times .2. So 72x .2 = 14.4

Given:
Prove:
Answer ASAP, please!:)

Answers

Answer:

Whats the question. I think I can help if there is a picture or if there are more words

What is 0 divided by 0

Answers

..............0................

Answer:

0

Step-by-step explanation:

You can’t divided 0 by 0 so it’s 0

Please solve!! Thank you :)

Answers

Answer:

5x-1+3x+4+x+11x-21

24x-18=0

24x=18

x=3/4

AB=3/4

BC=3/4

AD=2.25 or 2 1/4

Step-by-step explanation:

IDK if it is right plz let me know if it is



The ratio of dogs to cats at a pet store is 3:4 Which of these shows the
possible numbers of dogs and cats in the pet store?

Answers

Answer:

Step-by-step explanation:

6/8

12/16

24/32

Those are some samples. You have to give us choices.

solve for p:
2(p+1)=5(3p+7)

Please help!! I got to the last part of the equation and now I'm lost.

Answers

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

p = −33/13

Decimal Form:

p = −2.¯538461 (terminating)

Mixed Number Form:

p = −2/7/13

Solve for y: 2x-y = 3...halp meeeh pls. thhhhxxx!

Answers

Answer: Subtract 2x from both sides of the equation. Multiply each term in −y=−3−2x - y = - 3 - 2 x by −1 - 1 . Multiply (−y)⋅−1 ( - y ) ⋅ - 1 .

Step-by-step explanation:

Answer:

y= -3

Step-by-step explanation:

to find y- intercept, substitute x= 0

2 x 0 - y = 3

y= -3

steve saw 313 birds during a bird-watching trip to Yellowstone National park.he observes 15 more trumpeter swans then sand hill cranes.he saw twice as many mountain chickadees as ducky grouses.how many birds of each type did steve observe if he saw half as many trumpeter swans as ducky grouses

I need this ASAP

Answers

Answer:

82 ducky grouses, 41 trumpeter swans, 26 sand hill cranes, 164 chikadees

Step-by-step explanation:

a force of 10 newtons acts in a direction 75 above horizontal moving an object 15 meters from (0,0) to (15,0). What is the work done by the force?
a. 2.59 joules
b. 3.88 joules
c. 38.82 joules
d. 150.00 joules

Answers

Answer:

150 Joules

Step-by-step explanation:

Step one:

Given data

Force F= 10N

the distance is described by the coordinate =  (0,0) to (15,0)

hence the distance = 15m in the x-direction.

Step two:

Required is the work done

we know that work done is expressed as

Wd= Force* Distance

Wd= 10*15

Wd= 150 Joules

Answer:

38.82

Step-by-step explanation:

John read the first 114 pages of a novel, which was 3 pages less than 1/3 of the novel. Write an equation to determine the total number of pages (p) in the novel. Find the total number of pages in the novel.

Answers

Answer:

The novel has 117 pages

Step-by-step explanation:

Let  p  be the pages in the novel

p − 3 = 114

p = 117

Answer:

351

Step-by-step explanation:

114 = p/3 - 3

p/3 = 117

p = 351 page

Please mark me brainliest if this helped you ! (by clicking the little crown on my answer) it helps a lot thnx! (^o^)

Which of the
following is not a
function?
PLEASE HELP
15 POINTS OR BRAINLIST

Answers

Answer:

Answer Choice D

Step-by-step explanation:

Does not pass the vertical line test but the rest of the answer choices do which makes D not a function and your solution.

Can you please make my answer the brainliest I would very much appreciate it. Thanks!

(7TH GRADE LEVEL) Read the instructions and answer questions 16-18

Answers

Answer:

Equations

Step-by-step explanation:

16:

7 · (-3) = -21

-3 · 7 = -21

-21 ÷ 7 = -3

-21 ÷ (-3) = 7

17:

-4 · (-5) = 20

-5 · (-4) = 20

20 ÷ (-4) = -5

20 ÷ (-5) = -4

18:

1.5 · (-3) = -4.5

-3 · 1.5 = -4.5

-4.5 ÷ 1.5 = -3

-4.5 ÷ (-3) = 1.5

This is 7th grade?

Hope I helped :)

Answer:

16. 7 x -3= -21

    -3 x 7= -21

    -21/-3=7

    -21/7=3

17. -4 x -5= 20

    -5 x -4= 20

    20/-4=-5

    20/-5=-4

18. 1.5 x -3= -4.5

   -3 x 1.5=-4.5

   -4.5/-3=1.5

   -4.5/1.5=-3

   

Step-by-step explanation:

multiplication and division

What is the value of the function at x = 3? Enter your answer in the box.

Answers

Answer:

4

Step-by-step explanation:

When x is 3, y is 4

To do this, go to the right 3 units and go up until the line intersects with a grid point

At three, y is 4

Answer:

4

Step-by-step explanation:

i took the test

Translate each phrase or sentence into an algebraic expression, equation or
inequality.
8) Five more than four times a number is greater than sever
9) Five less than the square root of a number r
10) 10 + 3b
1

Answers

Answer:

8. 4x + 5 > 7

9. ✓x - 5

not sure about 10, is it missing information?

The length of a rectangle is four times its width.
If the area of the rectangle is 144 ft, find its perimeter.

Answers

Answer:

y = mx + c

since m = 0

c = 9

Answer: 60

suppose: the width of a rectangle is x (x > 0)

⇒ The length of a rectangle is 4x

because  the area of the rectangle is 144 ft

=> 4x.x = 144

⇔ x² = 144/4 = 36

⇒ x = 6

with x = 6 ⇒ The length of a rectangle is 4.6 = 24

the perimeter of the rectangle is (6 + 24).2 = 60

Step-by-step explanation:

What is L equal?
8+3l=l

Answers

Answer:

l=-4

Step-by-step explanation:

3l=l-8 3l-l=-8 2l=-8 l=-4

Follow my Pinterest 13jadyn13

Answers

Maybe for a Brainliest

Answer:

okay first you follow me on Pinterest

then I'll flw you back

good night

There are 2.54 centimeters in 1 inch. There are 100 inches in 1 meter. How many meter are in 158 inches?

Answers

Answer:

1.58 meters

Step-by-step explanation:

Dave bought 4 cookies at a bake sale if each cookie cost 0.85 and he paid with a twenty dollar bill how much change should he get back

Answers

Answer:

$16.60

Step-by-step explanation:

4 x 0.85 = $3.40

20 - 3.40 = 16.6

Dave should get back $16.60 in change.

Answer:

$16.6 dollars back

Step-by-step explanation:

The answer is $16.6 because 0.85 times 4 is 3.4 and 20 minus 3.4 is 16.6

what does 4(3+2x) equal

Answers

Answer: 12+8x

Step-by-step explanation:

1) 4(3+2x)- Distribute the 4

4x3+4x2x t get 12+8x

Simplify these expressions:
1. 2x + 8x
2. (5y) - 10y
3. W + 14w - 6w
4. 4x - 5x -6

Answers

Answer:

Theyre out of order.

Step-by-step explanation:

Other Questions
solve for x 3(-x-3)+x-3=24 How What was significant about the joining of the two kingdoms under Narmer?did the flooding of major rivers affect both the Mesopotamians and the Egyptians? In the rat, the allele for red eye colour is dominant over the alleles for brown colour. Consider a cross between a rat that is an Hozygote dominant for eye colour and a rat that is an Hozygote recessive for eye colour. 1. Show the parental genetic cross between the two rats.2. Use a Punnett square to show the F1 (filial generation).3. Indicate the genotype and phenotype of the F1 generation.4. With the results of the F1 generation, construct a Punnett square showing the results of an F2 (generation).5. Indicate the genotype and phenotype of the F2 generation help asap plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzfor 9th grade english sem.2 help meh plzzzzzzzzzWhich excerpt from is an example of an ad hominem fallacy? A. It is often stated that the dam and its reservoir have opened up to the many what was formally restricted to the few . . . B. Lake Powell, though not a lake, may well be as its defenders assert the most beautiful reservoir in the world. C. Defenders of the dam argue that the recreational benefits available . . . outweigh the loss of Indian ruins . . . D. This argument appeals to the wheelchair ethos of the wealthy, upper-middle-class American slob. What is the best definition of tone in a text trailer? Tone is a technique that grabs the readers attention and makes them want to read a book. Tone is a short video or slide presentation that provides an overview of a books story. Tone is a way of showing emotion or attitude about a piece of writing through word and detail choices. Tone is a restatement of the ideas in a text that focuses on the central points and is told in ones own words. What specific measure of a geometric figure is shown in the image? A. A 55mm side length B. A 180 mm side length C. A 55 angle D. A 125 angle (It may be A or C but idk) Question 1 of 10If f(x) = 3x - 1 and g(x) = x + 2, find (f + g)(x).O A. 2x-1O B. 2x-3C. 3x - 3O D. 4x + 1 What country is the most powerful? What quantity is measured in g/dm^3 PLES HELP MARKING BRAINLEST DUE IN 4 MINUTES What number of Senators is required to remove the President from office during an impeachment trial? A) 50 B) 67 C) 51 D) None of the Above A'mari drove 225 miles in 5 hours. To find the unit rate, you should determine how many miles A'mari drove in _____ hour(s). The electrons are outside the nucleus and have a negative charge? I NEED HELP OR I FAIL THIS TEST PLEASE A county fair charges $15 for admission and $0.50 per ride ticket. If Omar goes to the fair with $25, which equation could he use to determine the number of ride tickets he could purchase? A: 15x + 0.50 = 25B: 15.50x = 25C: 15 + 0.50x = 25D: 0.50x = 25 What do scientists call the S-layer in archaebacteria?proteins or glycoproteins that make up the cell wallproteins or glycoproteins that play a part in reproductionproteins or glycoproteins that help make ribosomesproteins or glycoproteins that make up the cell membrane a new machine with better technology produces 210 gel pens every 15 minutes what is the concept of the proportionality in the relationship between the number of gel pens and number of minutes Giving brainliest GIVING BRAINLIEST PLEASE HELP QUICK ONLY RIGHT ANSWERS PLZZ HELP!!!!!!! PLZ ANSWER a.__________ b._________ and c.__________ where are george and lennie coming from in the beginning of chapter 1 how is Macduff similar to Macbeth Solve for x510(2x + 3)65%606443(3x - 1)