Find the solution to the following system using substitution or elimination:​

Find The Solution To The Following System Using Substitution Or Elimination:

Answers

Answer 1

Answer:

D. (-2, 1).

Step-by-step explanation:

y = 3x + 7

y = -2x - 3

AS the expressions on the right are both equal to y:

3x + 7 = -2x - 3

3x + 2x = -3 - 7

5x = -10

x = -2

Plug this into the first equation:

y = 3(-2) + 7

y = 1.

Answer 2

Answer:

D, -2, 1

Step-by-step explanation:

Just got it correct on ap-x


Related Questions

I don't understand this: If Kelly spins the spinner 120 times, how many times would you predict the spinner lands on pink based on experimental data? Show your work in the box below the image.

Pink:6
purple:12
yellow:9
Blue:13

Answers

If Kelly spins 120 times there would be a 25% chance landing on pink (if there was 4 colors and I only see 4) would be about 30 times since 120*0.75=30

The expected value of the spinner landing on pink will be 18.

What is the expected value?

The anticipated value is an extension of the weighting factor in statistical inference. Informally, the anticipated value is the simple average of a significant number of outcomes of a randomly selected variable that was separately chosen.

The expected value is given below.

E(x) = np

Where n is the number of samples and p is the probability.

If Kelly spins the spinner 120 times. The table is given below.

Color      Frequency

Pink               6

Purple          12

Yellow          9

Blue             13

Total           40

Then the probability of the pink color will be

p = 6 / 40

p = 0.15

Then the expected value of the spinner landing on pink will be

E(x) = 120 x 0.15

E(x) = 18

The expected value of the spinner landing on pink will be 18.

More about the expected value link is given below.

https://brainly.com/question/13945225

#SPJ2

A mortgage has an initial balance of $150,000 and is charged 5% yearly interest applied monthly. If a person makes a payment of $1000 each month, which of the following is closest to the mortgage balance after 3 months of payments?

(1) $145,165
(2)$147,520
(3)$148,160
(4)$148,870

Answers

I think it is (2) but I’m not 100% sorry if this wasn’t much help

A mortgage loan is termed as a loan that is used to purchase or maintain a home, land or other pieces of real estate.

The borrower agrees to repay the amount of loan to the lender over a period of time, usually in a series of regular installments divided into principal and interest. The property is used as security for the loan.

Calculation of the amount of mortgage is as follows:

[tex]\text{Interest}= \text{Mortgage amount} \times\frac{0.05}{12}\times3[/tex] = 1875

[tex]\text{Principal Pay }= 1000 \times3[/tex] = 3000

Total amount paid = Interest + principal pay = 1875 + 3000 = 4875

Initial balance = 150000

The remaining balance for the mortgage amount = initial balance - the total amount paid.

Amount of mortgage = $ 145125.

Therefore the closest to the mortgage balance after 3 months of payments is

(1) $145,165.

To know more about the calculation of the mortgage amount, refer to the link below:

https://brainly.com/question/24913140

I need this down thanks

Answers

Answer:

c

a

Step-by-step explanation:

Answer:

5. is C which is 9.

6. is B which is 37.

Step-by-step explanation:

The first on is C. 9 because to find the interquartile range you need to subtract the upper quartile range by the lower quartile range. The upper is 16 and the lower is 7 so you do 16-7 which is 9.

The last question is B. 37 because the lower quartile range is first line in the box plot which is 37.

what is the greatest common factor (GCF) of 88 and 132?

Answers

I’m pretty sure the gcf is 44
From my calculations I’m pretty sure it’s 44.

I need help with these questions! My teacher didn’t teach me how to do these-

Answers

Answer:

Graph A has infinite solutions, Graph B has one solution, and Graph C has no solutions

Step-by-step explanation:

Identify the terms and like terms in the expression. x² - 3x + 4 + 2x² - x - 12. Thank you to anyone who helps, I appreciate it :)

Answers

Given:

The expression is:

[tex]x^2-3x+4+2x^2-x-12[/tex]

To find:

The terms and like terms in the expression.

Solution:

Terms: Variables, constants and product of variable and constants are known as terms which are separated by addition sign "+".

Like terms: The terms which contain same variables with same power are known as like terms.

The given expression is:

[tex]x^2-3x+4+2x^2-x-12[/tex]

It can be rewritten as:

[tex]x^2+(-3x)+4+2x^2+(-x)+(-12)[/tex]

Terms are [tex]x^2,-3x,4,2x^2,-x,-12[/tex].

Like terms are [tex]x^2,2x^2[/tex] and [tex]-3x,-x[/tex] and [tex]4,-12[/tex].

Gavin can type 3600 words in 60 minutes.
Dan can type 3850 in 70 minutes.
Colin can type 3500 words in 70 minutes.
Who types at the fastest rate of words per minute?

Answers

Answer:

Gavin

Step-by-step explanation:

Gavin: 3600 words / 60 minutes = 60 wpm

Dan: 3850 words / 70 minutes = 55 wpm

Colin: 3500 words / 70 minutes = 50 wpm

if g(x)=11x+3 find g(x+7) and g(x)+g(7).

Answers

Answer:

g(x + 7) = 11x + 80

g(x) + g(7) = 11x + 83

Step-by-step explanation:

g(x + 7) = 11(x + 7) + 3 = 11x + 77 + 3 = 11x + 80

g(x) + g(7) = 11x + 3 + 11(7) + 3 = 11x + 3 + 77 + 3 = 11x + 83

Solve 6f-4g=1,6f-6g=5

Answers

Answer:

The solution is (-1/2, -2)

Step-by-step explanation:

Given 6f-4g=1,6f-6g=5, write these in columnar form:

6f-4g=1

6f-6g=5

Change all of the signs in the first equation:

-6f + 4g = -1

 6f-6g=5

-------------------

     -2g = 4, and so g = -2

Substituting -2 for g in either equation enables us to find f.  Let's use the first equation:    6f - 4(-2) = 5 yields 6f + 8 = 5, or 6f = -3

Then f = -1/2 and g = -2.  The solution is (-1/2, -2)

PLEASE SOMEONE HELP!! I need the answer right now

Answers

Answer:

3rd one

Step-by-step explanation:

The other ones are all wrong because if you look at the first graph, it says every rectangle is 10. And you can see that the number of lunches sold are far more larger.

Ray ET bisects angle WET. If angle WET is 48 degrees and angle TEV is 3x +9, what
is the value of x?

19
48
13
3

Answers

Answer:

angle wet and angle vet are equal because et bisects wev.

angle wet=angle vet

48°=3x+9

48-9=3x

39=3x

39/3=x

13=x

Pls help !! Basically you have to put two math equations with one sentence! Will give brainliest

Answers

Answer:

2.

2x+3y=45

x+y=16

3.

x+y=383

4x+6y=2034

4.

y=2x+11

x+y=53

5.

2x+5y=16

5x+2y=19

Step-by-step explanation:

Answer:

Um excuse me u answered my question without answering my question so here we r

Step-by-step explanation:

Four people have measured the height of a wall using different methods. Their results are shown in the table. Order their measurements from least to greatest

Answers

Answer:

5/2, 2.6, 1 + sqrt(3), sqrt(8)

Step-by-step explanation:

Use a calculator:

sqrt(8) = 2.83

5/2 = 2.5

2.6 = 2.6

1 + sqrt(3) = 2.73

Answer:

5/2, 2.6, 1 + sqrt(3), sqrt(8)

Given the information below, is (DB) ⃡ tangent to Circle A at point B? Justify with shown work.

Answers

Hj said he would be a little bit later on Friday and

Hi! Please explain how you got your answer, thank you so much! :))​

Answers

Mostly the answer is B
1/180
Please check it more

What is the exact distance from (-4, -2) to (3, 8) on the coordinate plane?

√37 units
√85 units
√101 units
√149 units

Answers

Answer:

√149 units

Step-by-step explanation:

√(x2 - x1)² + (y2 - y1)²

√[3 - (-4)]² + [8 - (-2)]²

√(7)² + (10)²

√49 + 100

√149

Help on this question please algebra

Answers

Answer:

5/3

Step-by-step explanation:

2(4x - 3) + x = 3(2x - 1) + 2

8x - 6 + x = 6x - 3 + 2

9x - 6 = 6x - 1

3x = 5

x = 5/3

Hi!! Please explain how you got the answer, thanks!! :)) ​

Answers

Start out by finding the area of the square.

a = 4²

a = 16

Since all we have to look at is 1/4 of this square, multiply the area by 1/4.

(16)1/4

4

The area of the triangle is 4.

Now we need the area of the circle.

a = πr²

Sub: a = π(2)²

a = π(4)

Since the portion of the circle that covers the triangle is 1/4 of the circle, subtract 1/4 of the area of the circle from the area of the circle.

a = 4 - 1/4(π(4))

a = 4 - 1/4π x 1

a = 4 - 1/4π

Now this is where it's supposed to go, considering the fact that π isn't given a value.

Normally, I'd use 3.14 for π, as the entire population would, and then it would be easy, but obviously that isn't an option.

Now this answer isn't up there, so my best option is to tell you it's most likely c, and I hope I'm right.

Uhh good luck I guess this math test is weird

-Xax

please help me as quickly as possible, no links or scams, brainliest on the line!!

Lin ran 29 meters in 10 seconds. She ran at a constant speed.

How far did Lin run every second?
At this rate, how far can she run in 1 minute?

Answers

Answer:

Lin ran at 2.9 meters per second. She can run 174 meters in a minute (2.9 times 60)

Step-by-step explanation:

If she can run 2.9 meters in a second then when you times that by four you get how far she can run in a minute

2.056 gal + 0.47 gal

Answers

Answer:

2.526 gallons is the answer. I used a calculator

Answer:

QUESTION:

2.056 gal + 0.47 gal

ANSWER:

(2.05600 US gallons) + (0.47 US gallons) =

2.52600 US gallons

Step-by-step explanation:

Hope that this helps you out! :)        

If you have any questions please put them in the comment section below this answer.        

Have a great rest of your day/night!        

Please thank me on my profile if this answer has helped you.

please hurry. only answer if you know the answer. thank you! <3

Answers

it think it might be b because it just makes sense

help please, I need this answer like right now!

Answers

Answer:

A

Step-by-step explanation:

it almost fits all the the dots

Answer:

It's the fist option

aaaaaaaaaaabbbbbbbbbbbccccccc

can someone help me plz ​

Answers

Answer:

9442 lb

Step-by-step explanation:

First find the volume of the tank.  This being a sphere, the volume is V =(4/3)π·r³.  Here the diameter is 17 ft, so the radius, r, is half that:  8.5 ft.

Then the volume of the sphere is V = (4/3)π·(8.5 ft)³, and half that (the volume of the hemisphere) is (2/3)π·72.25 ft³.

Water weighs 62.4 lb/ft³.  To find the weight of the water in the full tank, multiply the tank volume by this weight density 62.4 lb/ft³:

×

(2/3)π·72.25 ft³ · 62.4 lb/ft³ ≈ 9442 lb

65.40/w=95/100
Solve for W

Answers

Answer:

w = 68.84

Step-by-step explanation:

cross-multiply:

95w = 6540

w = 6540/95

Aarav and Bahir are running laps around a 400-meter circular track. They started together and ran in the same direction. Each of them is running at a constant rate. When Aarav completed the first lap, Bahir was already 100 meters ahead of him. How many laps will Aarav complete by the time Bahir reaches him from behind on the track?

Answers

Answer:

4

Step-by-step explanation:

for every 400 meters aarav runs bahir runs 500

when bahir is at 2000 aarav is at 1600

Please help (links will lead to a report)

Answers

Answer:

the shaded part is 60% of the thing

Step-by-step explanation:

3/5 = 60%

A specialty candy shop makes chocolate covered cherry and graham cookie bites. The cherry is spherical with a diameter of 3 cm and the graham cookie is a rectangular prism with a base measuring 4 cm by 4 cm and a thickness of 0.5 cm. What is the total surface area of the bite if each piece is drenched in chocolate from top to bottom before being put together, to the nearest tenth of a square centimetre?

Answers

Answer:

44.7cm^2

(I had a similar problem the only difference is that instead of 4 by 4 cm mine is 5 by 5cm so you'll still have to do some calculations but it's the same process

step-by-step

Susana's parents gave her $24 to spend at the carnival. If the tickets for the rides cost $3 each, find the maximum number of tickets Susana can buy

Answers

Answer:

The maximum number of tickets Susana can buy is 8.

Step-by-step explanation:

From the information provided, you can say that the total amount spent at the carnival would be equal to the price per ticket for the number of tickets purchased which can be expressed as:

c=3x, where:

c is the total amount spent

x is the number of tickets purchased

Now, you can replace c with 24 that is the amount Susana's parents gave her to spend at the carnival and then, solve for x:

24=3x

x=24/3

x=8

According to this, the answer is that the maximum number of tickets Susana can buy is 8.

Marking brainliest!

What is the question asking did ?

Answers

Answer:

4.5

Step-by-step explanation:

Its asking if y was six what would x be. Then you get n.

Hey! Can someone better at math then me please help?!?!? Can you also explain how you found the answer because I have a ton of similar problems. Thanks so much!

Which of the following ordered pairs is a solution of x + y = 1?

(-2, 6)
(-2, -6)
(2, -6)

thank youuuuuu!!!

Answers

(-2,-6) because negatives make a positive
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