Mathematics Middle School

Find the solution to the following system using substitution or elimination:
y = -4x + 9
y = 3x - 5
O (1, -2)
O (14, 37)
O (2, 1)
O (1, 5)

Answers

Answer 1

Answer:

a

Step-by-step explanation:

Answer 2

Answer:

(2,1)

Step-by-step explanation:

y = -4x + 9  -------------->eq1

y = 3x - 5  --------------->eq2

consider eq 1 and put in eq2

-4x+9=3x-5

add -9 on both sides

-4x=3x-14

add -3x on both sides

-4x-3x=-14

-7x=-14

x=2

put in eq1

y=-4(2)+9

y=1

S.S=(2,1)

Related Questions

Kate is playing a game with a set of 24 cards equally divided into 4 colors (red, green, blue, and yellow). Find the probability of her randomly selecting a red card, not replacing it, and then selecting another red card.

A. 1/36

B. 5/92

C. 3/16

D. 2/49

Answers

Is B because yes is B

Answer:

its b

Step-by-step explanation:

Please help me ASAP!! I will give Brainliest!!

When multiple glaciers start their downward flow from a single point, they create a _____.

A canyon, a mountain cliff, a mountain peak, a natural arch, or a table mountain?

Answers

Answer:

Mountain peek

Step-by-step explanation:

Pyramid like structure

Answer:

Mountain Peak

Step-by-step explanation:

Mountain peak termed as Pyramidal peak is formed by the movement of multiple glaciers. When glacier starts moving from a central point there by causing erosion of consolidated land mass to form angular and sharp mountain peak.

A glacier while moving/melting carries away the base material attached to it by two ways either plucking or abrasion. Mountain peaks get exposed when the glacier melts down

Alan has a photo that is 6 in by 8 in. what will the dimensions of the photo be if he scales it down by a factor of 1/2?

3 inch by 4 in
6 in by 8 in
12 in by 16 in
1.5 in by 2 in​

Answers

Answer:

Half of 6 is 3

Half of 8 is 4

so it will be 3 in by 4 in.

Step-by-step explanation:

Answer:

3 by 4

Step-by-step explanation:

if you make 8$ an hour and get a 10% raise what is your new hourly pay?

Answers

Answer: 2.2% I’m not sure (ps. I’m really not sure like this is what I think it is butttt someone’s answer might be better so go with there’s)

PLEASE HELP ME WITH THIS I WILL GIVE YOU BRAINLIEST

Answers

Answer:

7 1/5

Step-by-step explanation:

5 goes into 36, 7 times. That's your whole number

5x7=35

You'll have 1 left over 36-35=1 . That's your numerator. Denominator stays the same.

Answer:

7 1/5

Step-by-step explanation:

36/5 is 7, remainder 1. So, the answer is 7 1/5

At a sale this week, a sofa is being sold for $240. This is a 36% discount from the original price. What is the original price?

Answers

Step-by-step explanation:

0.36x = 240

x = $666.6 orignal price

Answer:

the original price of the sofa is $375

Step-by-step explanation:

What is the probability that the computer produces the first letter of your name?

Answers

1/26

Because there are 26 letter in the Alphabet

Answer: 1/26

Step-by-step explanation:

What is the remainder when dividing (y^2 – 2y + 2) by (y – 2)?
A. –2
B. –1
C. 1
D. 2

Answers

I think its A. -2.

sorry if wrong.

4, 4, 6, 7, 9, 9, 9, 10, 14, 17, 21
Mean:

Median:

Mode:

Range:

Answers

Answer:

Mean: 10

Median: 9

Mode: 9

Range: 17

Step-by-step explanation:

Mean is adding all the numbers together then *divide by the number of numbers you added:

4 + 4 + 6 + 7 + 9 + 9 + 9 + 10 + 14 + 17 + 21 = 110

110 / 11 = 10

Median is the middle number: 9

The number that appears the most often is the mode: 9

The range is the difference between the lowest and highest number:

21 - 4 = 17

That is the amswer u are welcome

What is 1 1/3 - 5/6???

Answers

11/3 -5/6 is equal to 2 and 5/6! Hope that helps.

Which of the following is a pair of vertical angles?

EXAMPLE: 1 and 4 , 1 and 5

Answers

5 and 7
1 and 3
4 and 2
8 and 65
5 and 7
1 and 3
4 and 2
8 and 65

One way to convert from inches to centimeters is to multiply the number of inches by 2.54. How many centimeters are there in 1/4 inch?

Answers

Answer:

0.635

Step-by-step explanation:

There are 0.635 centimeters in 1/4 inch.

To convert inches to centimeters using the conversion factor of 2.54.

you can multiply the number of inches by 2.54.

To find the number of centimeters in 1/4 inch, you would multiply 1/4 by 2.54:

(1/4) × 2.54

= 0.25 × 2.54

= 0.635

Therefore, there are 0.635 centimeters in 1/4 inch.

To learn more on Conversion factor click:

https://brainly.com/question/30567263

#SPJ6

A triangle has side lengths of (6v+2) centimeters, (6v+5) centimeters, and (3w-2) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?

ILL GIVE YOU BRAINS :)

Answers

The expression that represents the perimeter is [tex]12v + 3w + 5[/tex]

Definition of Perimeter

      The perimeter of a figure is defined as the total length of the outer boundary of that figure. It is the sum of length of each side of a figure.

Calculation of Perimeter of given triangle:

Given,

The triangle has sides of length [tex](6v+2)cm, (6v+5)cm[/tex] and [tex](3w-2) cm[/tex].

The perimeter can be calculated by adding the sides.

⇒ [tex](6v+2) + (6v+5) + (3w-2)[/tex]

Now, like terms and constants can be written together

⇒ [tex]6v + 6v + 3w + 2 + 5 - 2[/tex]

⇒ [tex]12v + 3w + 5[/tex]

Hence, the expression that represents the perimeter of given triangle is  [tex]12v + 3w + 5[/tex].

To learn more about perimeter of triangle, refer: https://brainly.com/question/17394545

#SPJ2

Help me plzzzzzzzzz asapppppppp​

Answers

Answer:

(

390

Step-by-step explanation:

A doctor told a patient to drink 1.6 liters of water everyday. About how many liters should the patient drink in 14 days?

Answers

He would have drank 22.4 litres of water in 14 days

Answer:

22.4

Step-by-step explanation:

1.6 * 10 = 16 + 1.6 * 4 = 6.4 = 16 + 6.4 = 22.4

Please answer!! Im confused currently!!

Answers

circumference/perimeter = 2 x pi x r or pi x d
so 2 x 3.14 x 1.7 = 10.676
so C (10.7)

Answer:

2πr=c, Perimeter, or Circumference is what we are looking for, and this is the formula.

so we need to figure out 2 x 3.14 x radius:1.7 = Perimeter or Circumference

2 x 3.14 = 6.28

6.28 x 1.7 = 10.28

P.S. answer is 10.7, my answer is simplified.

~Hope this helps~

Here is another one. Sowwie

Answers

Answer:

the answer is b

Step-by-step explanation:

have a good day :)

Answer:

B.

Step-by-step explanation:

PLEASE HELP!! Write the equation of the line below in slope-intercept form. Remember, write any slopes as reduced, improper fractions!

Answers

Answer:

y= -2x + 7

Step-by-step explanation:

first, we know the slope will be negative because the like is going down

lets look at the point that is on the y-axis, this will be our y-intercept

7 is the point hitting the y axis, plug this into the equation

so far we have y=7

now let's find the slope, starting at 7, we go down 2 and over one to get to the next point. let's add this

y= -2x+7

Answer:

y= -2x + 7

Step-by-step explanation:

The 8 red markers in a box account for 4% of all markers in the box. How many markers are in the box?
a.200
b.100
c.120
d.210

Answers

200 because it’s not 120

Answer:

c I think

Step-by-step explanation:

I don't know...

Charlie runs a book rental business. He currently charges $3 per book and rents out an average of 38 books a day.

According to a study, for every 50¢ increase in rental price, the average business can expect to lose 4 rentals a day.

Complete the equation that models this scenario, where b(x) is the revenue generated and x is the number of 50¢ price increases.

b(x) = -
x2 +
x +

Answers

Here is the answer to your problem

Marina deposits $1,500 in a savings account at Bank of America. The bank will pay her 5% interest at the end of the year. How much additional money from interest will Marina receive?

Answers

Answer:

75 of additional money

Step-by-step explanation:

5% of 1,500 is 75

and 1,500 plus 75 is 1575

z - 311 = 151



what would z be???

Answers

Answer: 160

Reason: 151 - 311 = 160

Answer:

462

Step-by-step explanation:

z-311=151

add 311 to both sides

z=151+311

add 151 and 311 to get 462

z=462

hope this helped :)

240 is 60% of what number? You may choose to complete a double number line OR percent proportion. Show your work

Answers

Answer:

400

Step-by-step explanation:

You divide 240 by 6 and then multiply by 10.

400
Hope this helps

Find the perimeter of polygon abcdefg.

Answers

Answer:

11=6-y=f+e+g+d+c+b+a=the perimeter of a polygon meaning the perimeter of the polygon is 34blocks

Step-by-step explanation:

Please help it's due inna few minutes

Answers

Answer: i dont know

Step-by-step explanation: why 7th grade not 8th

Answedsa

dadasdasad

asdasdsad

ads

d

d

d

d

d

d

Step-by-step explanation:

Identify the measure of angle x.

Answers

Find the value of X in triangles by subtracting known angle measurements from 180 degrees. Since the value of all angles within a triangle must equal 180 degrees, if you know at least two angles, you can subtract them from 180 to find the missing third angle.
17 yuhhhhhhhhhhhhhhhhhhhh

6. Heidi read 26 pages in 14 minutes. At what speed did she read?

Answers

Answer:

1.9 or about 2 pages per minute

Step-by-step explanation:

Just 26/14

Good luck luv!

Heidi read 26 pages in 14 minutes, then the speed of Heidi of reading book will be equal to 1.85 page per minute.

What is arithmetic Operations?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or even more items.

Included in them is the study of integers, especially the order of operations, which is important for all other areas of mathematics, notably algebra, data management, and geometry.

As per the given information in the question,

Total pages read by Heidi = 26

Total time to read the pages = 14 minutes

So, the speed of reading will be,

s = 26/14

s = 1.85 page per minute.

To know more about arithmetic operations:

https://brainly.com/question/25277954

#SPJ2

If x = 12 units, y = 4 units, and h = 8 units, find the area of the rhombus shown above using decomposition.
A.
128 square units
B.
16 square units
C.
32 square units
D.
96 square units

Answers

Answer:

i cant see you file

Step-by-step explanation:

Answer:

D. 96 square units

Step-by-step explanation:

This is the correct answer, many have gotten it wrong in the past

but it's 96 units squared.

Describe the probability of rolling a die and landing an even number while tossing a coin and landing on heads.

A. as likely to happen as not to happen

B. impossible

C. likely

D. unlikely

Answers

Answer:

d

Step-by-step explanation:

The first step is to find the possibility of the die landing on an even number which is 3/6 as there are 6 possible turn outs and 3 of them are even. Which means the probability is 3/6 or in its simplified version 1/2. The second step is to find the probability of landing on heads which is 1/2 as there are 2 possible turn outs and 1 of them is heads. Which means the probability is 1/2 (it cannot be simplified) . To find the probability of both we need to times them together so 1/2×1/2= 1/4. So the probability of getting both is 1/4 which is unlikely probability so the answer is D .

Hey, help plz! 9r/sif r = 6 and s = 3?????

Answers

Answer:

18

Step-by-step explanation:

9 x 6 / 3  

54/3

18

Other Questions
2. George worked 40 regular hours and 5 overtime hours this week. If his regular pay is $14 perhour, and he is paid double time for overtime hours, how much did he earn this week? What are the 3 dimensions referenced when we say 3D? What is in simplest form? The following map shows the time it takes to drive between four cities in Texas. Jacob has to drive from San Antonio to Houston, and then from Houston to Dallas. How many hours will it take him?The picture is supposed to be right here7 2/15 hours7 5/12 hours4 7/12 hours7 hoursBut I choose 7 5/12 Is this correct? 4. Aside from the abundance of coal, what other factor caused the Industrial Revolution to begin in Britain in the 18th century? someone please help!! i willmake you a brainliest...i dont want to fail. ive posted this 3 times now:(( At a party, the amount of people who ate meatballs was 12 less than 1/3 of the totalnumber of people. The number of people who ate meatballs was 5. Write and solve an equation tofind the number of people at the party. Let x represent the number of people at the party. Use penciland paper. Write a one-step equation that has the same solution.Write an equation that represents the number of people at the party.1/3x-12=5 there where __ people at the party I neeed helpppppp pleaseeeeee How is elaboration used in argument writing for an opinion essay Plz help !! I dont know the answer to this help me with this question Beth was driving to work when she looked at her phone for a moment becauseshe received a text message. Due to this, she hit a car in front of her. In amoment of panic, she quickly drove away without taking responsibility. Whattype of law does this represent? *criminalcivilconstitutionaljuvenilemilitary Which expressions are equal to 675?1. 700 - 252. 700 - 75 3. 600 + 754. 634 + 315. 500 + 175 equation shows the relationship between X and why. y= - 7 + 9 what is the slope of the equation? HELP!! Graph the equation. y=-2(x-1)^2-4Its an interactive graph. Do you think it is possible for a utopia to exist? Use evidence from your own observations and experiences to support your reasoning. Which is 1/3 + 1/4?Plz help Did Rudy have a strategy for achieving his goal of becoming a Notre Dame Football player? Taliyah plans to borrow $4,500 from the bank to purchase a used vehicle. If she borrows the money at a rate of 4% simple interest for 2 years, what is the total amount she will have to pay back to the bank? Based on the following data, would Beth and Roger Simmons receive a refund or owe additional taxes.