Mathematics High School

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:

B) (3,1)

Step-by-step explanation:

y = -2x + 7

y = 3x - 8

3x - 8 = -2x + 7

combine like terms:

5x = 15

divide both sides of the equation by 5:

x = 3

y = 3(3) - 8 = 1

Related Questions

Find the area.
Help me please!

Answers

Answer:

16 cm^2

Step-by-step explanation:

Formula = 1/2 * base * height

1/2 * 8 * 4 = 16

16 cm^2

points for whoever solves this little question first
if an coco-nut has milk and hair why isn't it considered a mam-mal

Answers

A coconut does not, in fact, have hair despite what it's called.

Additionally, it does feed its young with milk, unlike mammals.

Also, a coconut is a plant. Plants are not mammals.

COCONUT MILK Yaayyyyyyyyy

Mia walks up to a claw machine with a pocket full of quarters. She spends them at a rate of two every minute until she runs out.

Part A

If the number of quarters Mia has is graphed over time, which feature of the graph corresponds to the rate at which Mia spends the quarters?
A. the x-intercept
B. the slope
C. the y-intercept
D. the minimum value
Part B

What is the slope?
A. 2
B. 60
C. −60
D. −2

Answers

part a

The x-intercept

part b

2

The y - intercept is the graph corresponds to the rate at which Mia spends the quarters.

And, The value of slope will be 2.

What is Equation of line?

The equation of line in point-slope form passing through the points (x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

Given that;

She spends them at a rate of two every minute until she runs out.

Now,

Since, She spends them at a rate of two every minute until she runs out.

And, The number of quarters Mia has is graphed over time.

We know that;

Usually we represent the independent variable (time) by x and dependent variable (quarters) by y.

Hence, The y - intercept is the graph corresponds to the rate at which Mia spends the quarters.

So, The slope = 2/1

                       = 2

Thus, The y - intercept is the graph corresponds to the rate at which Mia spends the quarters. And, The value of slope will be 2.

Learn more about the equation of line visit:

https://brainly.com/question/18831322

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Observe os pontos Z, Y, W, X e V marcados na reta numérica abaixo.

M120566H6

Desses pontos, o que melhor representa a localização do número irracional 14−−√ é o
Z.
Y.
W.
X.
V.

Answers

Y

A raiz quadrada de 14 seria 3.74165738677 ou 3.7

Arredondamos para 4 já q 7 é próximo de 10

On Saturday 4 groups of people went to the restaurant at the ski resort. Each group had 5 people in it. Everyone ordered a cup of hot chocolate. Rebecca,Malaki,and Jeffery each ordered an extra cups of hot chocolate.how many many cups of chocolate did the people drink that day?

Answers

Answer:

23

Step-by-step explanation:

total number of people at the restaurant = number of groups x total number of people in the groups

4 x 5 = 20

20 people ordered hot chocolate

3 people ordered an extra cup of hot chocolate.

The total number of hot chocolate ordered = 20 + 3 = 23

What is the quotient of 1/2 divided 3

Answers

Answer:

1/6

Step-by-step explanation:

the answer is 1/10 or .1

what is 136 over 20 x 96 over 20?

Answers

Answer:

32.64

Step-by-step explanation:

136/20*96/20=32.64

the answer is 17/12 or 1 5/12

Please help me with this

Answers

Answer:

i dont know

Step-by-step explanation:

Calculate the Mean Absolute Deviation of these data. Round answers to the nearest tenth (one decimal place).

12, 17, 20, 8, 13

Answers

Answer: 3.6

Step-by-step explanation:

(13x-26) (5x+8) PLEASE HELP

Answers

Answer: X= 11

Step-by-step explanation: 13x-26 and 5x+8 are Linear Pairs which are supplementary. 13x-26+5x+8 is equal to 18x-18=180. 18x=198 and then X=11

Solve for u.
11u = -22
Simplify your answer as much as possible. <3

u = ???

Answers

Answer:

u=-2

Step-by-step explanation:

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

11u=−22

Step 1: Divide both sides by 11.

11u

11

=

−22

11

u=−2

Answer:

u=−2

Which expression could be used to evaluate the expression below?

Answers

Answer:

Step-by-step explanation:

Is there supposed to be a picture

Below are two images with scale copies of each other. Determine the scale factor for each of the following:

Answers

I’m pretty sure the scale factor is 1/3 since it’s dilating. Cause 9/3=3 and 6/3= 2

One smartphone plan costs $52 per month for talk and messaging and $8 per gigabyte of data used each month. A second smartphone plan costs $82 per month for talk and messaging and $3 per gigabyte of data used each month. Let c represent the total cost in dollars and d represent the amount of data used in gigabytes.

The system of equations {c=52+8dc=82+3d can be used to represent this situation.
How many gigabytes would have to be used for the plans to cost the same? What would that cost be?

Both plans would cost $
if
gigabytes of data are used.

Answers

Answer:

a) 6 gigabytes

b) $100

Step-by-step explanation:

Let c represent the total cost in dollars and d represent the amount of data used in gigabytes.

For the first smartphone

One smartphone plan costs $52 per month for talk and messaging and $8 per gigabyte of data used each month.

Equation =

c = 52 + 8d

For the Second smartphone

A second smartphone plan costs $82 per month for talk and messaging and $3 per gigabyte of data used each month.

Equation =>

c = 82 + 3d

How many gigabytes would have to be used for the plans to cost the same?

We would equate both cost to each other

52 + 8d = 82 + 3d

Collect like terms

8d - 3d = 82 - 52

5d = 30

d = 30/5

d = 6

Therefore,

a) The number of gigabytes for the cost of both Smartphone data plans to be the same = 6 gigabytes.

b) The cost of both plans if 6 gigabytes is used =>

c = 52 + 8d

c = 52 + 8 × 6

c = $100

It’s on the picture .

Answers

Answer:

slope 2

yint 1

equation y=2x+1

16. Geography If a ship sailed due south from Iceland to Antarctica, it would sail
through an angle of rotation of about 140° around Earth's center. Find this measure in
radians. Then, using 3960 miles for Earth's radius, find how far the ship would travel.

Answers

Answer:

9674.28 miles

Step-by-step explanation:

From the above question, we are given:

Central angle = 140°

Radius = 3960 miles

We are to solve for the distance = Arc length

The formula for Arc length when your central angle is in radians

r × θ

θ = 140°

Converting 140° to radians

140° × π/180 = 2.443rad

Hence,

3960 × 2.443 rad

= 9674.28 miles

The ship would travel 9674.28 miles.

Can you help me plz? I'll mark brainilest

Answers

the answer is amplitude

Which statement is best supported by the information in the box plots?

Answers

Answer: A

Step-by-step explanation:

Answer:

It is A

Step-by-step explanation:

what is the value of 4(a+b) when a=2 and b=7​

Answers

Answer: 4x2=8

4x7=28 the full answer should be 144 since 28+8 =36 a 4x36 = 144

Step-by-step explanation:

There are 12 turtles on a log, and 9 of those turtles are green. What fraction
of the turtles are green?

Answers

Answer:

75%

Step-by-step explanation:

Take 9/12 and multiply it by 100 and you get the percentage of the turtles that are green.

The answer is 9/12 :))

Lupe uses 6.6 pints of white paint and blue paint to paint her bedroom walls. 2 5 of this amount is white paint, and the rest is blue paint. How many pints of blue paint did she use to paint her bedroom walls?

Answers

Answer:

3.96 pints of blue paint was used by Lupe to paint her bedroom walls

Step-by-step explanation:

Given,

Totals pints of white and blue paint used = 6.6

Out of this 6.6 pints, 2/5 is white paint and 3/5 is the blue paint

Total amount of blue paint used to paint the bedroom walls

[tex]\frac{3}{5} *6.6\\= 3.96[/tex] pints

ASAP HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!

Answers

Answer:

enlargement, greater than one

Step-by-step explanation:

it got bigger

Find the area of the regular 18-gon with radius 10 mm

Answers

Answer:

Step-by-step explanation:

Find the area of the regular 18-gon with radius 10 mm

HELP ME OUT GUYS ILY ALL AND I WILL GIVE BRAINLIEST

Answers

A = area of triangle + area of rectangular + half of the circle area

_________________________________

triangle area = 1/2 × base × height

triangle area = 1/2 × 3 × 5 = 15/2 = 7.50

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rectangular area = length × width

rectangular area = 6 × 5 = 30

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circle half area = 1/2 × pi × radius^2

circle half area = 1/2 × 3.14 × 3^2

circle half area = 1.57 × 9

circle half area = 14.13

_________________________________

A = 7.50 + 30 + 14.13

A = 51.63 m^2

Will mark Brainliest. I really do not understand this at all

Answers

Answer:

basically you are writting an equation for the solution of the circle if you didnt get what i said ask a teacher

Step-by-step explanation:

There are 360 seals. Of them are 9/20 are pups. The rest are adult seals . How many pups are the beach .

Answers

Answer:

162 pups are on the beach

Step-by-step explanation:

9/20 of 360

The key word "of" tells us to multiply

Variable x = number of pups

9/20 × x/360

Cross multiply

9 × 360 = 20 × x

3,240 = 20x

Divide both sides by 20

162 = x

Check our work:

9/20 = 162/360

Cross multiply

9 × 360 = 20 × 162

3,240 = 3,240

Correct

KatyDid Clothes has a $120 million (face value) 25-year bond issue selling for 103 percent of par that carries a coupon rate of 9 percent, paid semiannually.

Answers

Answer:

8.704%

Step-by-step explanation:

The computation of the before cost of debt is as follows

Given that

Future value = $100

Present value = $103

NPER = 25 × 2 = 50

PMT = $100 × 9% ÷ 2 = $4.5

The formula is presented below:

= -RATE(NPER;PMT;PV;FV;TYPE)

After applying the above formula, the rate is 4.3518%

Yearly rate is

= 4.3518% ×2

= 8.704%


I'll give BRAINLEST

what is the total surface area of the triangular prism ​

Answers

Answer:

105.962

Step-by-step explanation:

Answer:

960 or 64

Step-by-step explanation:

4•6=24

8•5=40

24+40=64

or

24•40=960

Please help me. thank you!

Answers

Answer:

thanks for the points lol

Step-by-step explanation:

Answer:

x= -10

Step-by-step explanation:

Will mark brainliest if correct! No links ! It’s math

Answers

Answer:

RP=21

Step-by-step explanation:

I started with 111 divided by 37 which gave me 3 and to be safe I did 51 divided by 3 which did give me 17 so then I just did 63 divided by 3 and got 21.

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