Solves a systems of linear equations in two variables.
Solve the following systems by graphing
1) 2x + y = 5 and x-3y = - 8
2) 6x - 3y = - 9 and 2x + 2y = -6
Solve the following systems by substitution
3) y = 5x-3 and -x - 5y = - 11
4) 2x - 6 = 24 and x - 5y - 22
Solve the following systems by elimination
5) - 4x - 2y = -2 and 4x + 8y = -24
6) x - y = 11 and 2x + y = 19​

Answers

Answer 1
1) (2,-1)
2) (-2,-1)
3)(.156,-2.22)

Related Questions

can someone help lol

Answers

Answer:

500

Step-by-step explanation:

What is the slope of this line?
Points on this line include (1,3) (2,6) and (3,9). Number only. Just write the slope in simplest form.

Answers

the slope of this line i’m pretty sure is 2,6 of it is wrong i aplogize but this is the most reasonable answer thanks you for your time and i hope you get the answer right

In a telephone poll, 14 people said they like shopping and 22 people said they do not like shopping. What is the ratio of the number of people who like shopping to the number of people who do not like shopping?

Answers

Answer:

I think it's 7:11

Step-by-step explanation:

14:22

simply it will be 7:11


Adrian currently has $400 in his savings account. He saves $20 per month. He saves the same amount each month and does not take any money
out of the account. In how many months will Adrian have $700 in his savings account?
O 35 months
o 15 months
o 55 months
o 20 months

Answers

Answer:

15

Step-by-step explanation:

if 5 20s is 100 then do it times three if that makes sence lol

1)
Which decimal represents the portion that is NOT shaded?
A)
0.003
B)
0.03
0
0.3
D)
3.0

Answers

Answer:

D) 3.0

Hope this helped

Casey currently owes $500 to his parents. He plans to pay them $60 per month until it is
paid off. Sally also owes her parents money. She borrowed $600 from them and plans to
pay them back $80 per month. Is there a time when they will both owe their parents the
same amount of money?

Answers

Answer:

They will both owe their parents $200 when Casey is paying his 5th month and Sally is paying on her 5th month.

Step-by-step explanation:

If Casey pays 60 dollars after 5 months, he will have payed $300 dollars. He still needs to pay $200.(500-300) If Sally pays 80 dollars after 5 months, she will have payed $400 dollars. She still needs to pay $200. (600-400)

what is 5 1/3 as an improper fraction??

Answers

Answer:

5/3

Step-by-step explanation:

PLS MAKE ME AS BRAINLIST

3+(−4)−8−(−1)

can guy help me pls

Answers

Answer:

-10

Step-by-step explanation:

Answer:

-8

Step-by-step explanation:

- A fish tank filter cleans 3 gallons of water every 1/4 hour. Set up and solve a proportion to determine how many gallons of water are cleaned in 4 hours.​

Answers

Answer: 48 gallons in 4 hours

Step-by-step explanation:

3 gallons every .4 hours > 12 gallons every 1 hour > 48 gallons every 4 hours

will mark brainliest pls answer

Answers

Answer:

= 18 square units

Step-by-step explanation:

area = full square units +  1/2 x half-full square units

                                                         2

remember  that if a square is not full it is NOT full: hence it will be considered as half full.

full square units =12

1/2 full square units =12

12 + 12/2

12 + 6

= 18 square units

what’s the axis of symmetry & vertex *PICTURE*

Answers

Answer:

2.5

Step-by-step explanation:

:)


What algebraic expression will I put for the drawing above?

Answers

as in your model 4,4,4,1, think on those around them or ask for help

Urgent!!!!

If you were 6' 6 1/2" tall, about how many meters tall would you be? Hint: "There are 3.28 feet in a meter."

6.4 meters
2 meters
1.8 meters
7 meters
3.5 meters

Answers

Step-by-step explanation:

2 meters is the answer

please give me brainliest

1. What graph shows a line with an x-intercept of 5?

Answers

Answer:

its anything that crosses the vertical ( | ) line at the point (0,5)

Step-by-step explanation:

anything like the picture

Which equation is written in slope-intercept form?
O y = 3x-2
O X= ży+ 8
- 2x + 5y = 12
O 3y = 8x-5

Answers

Answer:

The first one

y= 3x-2

Step-by-step explanation:

I need help ASAP pic below

Answers

Answer:

Step-by-step explanation:

2) ∠A + ∠B = 146       {Exterior angle theorem}

5y + 3 + 4y + 8 = 146

5y + 4y + 3 + 8 = 146           {combine like terms}

         9y + 11 = 146

               9y = 146 -11

               9y = 135

                 y = 135/9

y = 15

3) m∠A = 5y + 3

              = 5*15 + 3

              = 75 + 3

A = 78

4) m∠B = 4y + 8

            = 4*15 + 8

            = 60 + 8

      m∠B = 68

5) m∠ACB + m∠A + m∠B = 180   {Angle sum property of triangle}

 m∠ACB  + 78 + 68 = 180

           m∠ACB + 146 = 180

                       m∠ACB = 180 - 146

                      m∠ACB = 34

(-1,5) (2,-5) what is the slope can anyone please help

Answers

Slope= y2 - y1
———- = 1/0 or 1
X2 -X1
-1-2 = 1
-5-5= 0

I EILL MAKE BRAINLEST NEED HELP ASAP MT TEACHER IS ABOUT TO YELL WT ME PLEASE PLEASE PLEASE PLEASE PLEASE

Answers

Ok, what class is this

Joey goes to an electronics store to buy video games and
CD's. He has $140 from his birthday party and he's looking to
buy video games for $35 each and CD's for $15 each. Write an
inequality to describe the possible number of video games and
CD's that Joey can buy. If Joey buys 4 CD's, what is the
maximum number of video games he can buy?
video games

Answers

Answer:

2

Step-by-step explanation:

what is the cost per ounce for 10 ounce package of cashews

Answers

Answer:

you have to give more explanation as right now the equation is unsolvable

Step-by-step explanation:

PLEASE HELP
The question is in the picture so this is just filler text but please help me ASAP

Answers

OC should be 5, since DE is a bisector, meaning OB and OC should be the same length. That would make BC 10, because you’re adding the two 5s together

4 and 5 PLEASEEEE!!!

Answers

Answer:

True

Bones seperated from a joint

Step-by-step explanation:

Answer:

5 is bones separated from the joint

Step-by-step explanation:


In the city of Carmen, there is a drawbridge that is opened twice per hour over the summer. The graph below shows the number of feet that the top of the bridge was above the water versus the amount of minutes that the
drawbridge was open

Answers

Answer:

1) Between 0 and 1 minute the rate of change is 25 ft./min

2) Between 1 and 2 minute the rate of change is 0 ft./min

3) Between 2 and 4 minute the rate of change is -12.5 ft./min

Step-by-step explanation:

1) Between 0, and 1 feet, we have;

The rate of change = (Final height - Initial height)/(Final time - Initial time)

The rate of change = (40 - 15)/(1 - 0) = 25 ft/min

Between 0 and 1 minute the rate of change = 25 ft./min

2) Between 1, and 2 feet, we have;

The rate of change = (40 - 40)/(2 - 1) = 0 ft/min

Between 1 and 2 minute the rate of change = 0 ft./min

3) Between 2, and 4 feet, we have;

The rate of change = (15 - 40)/(4 - 2) = -12.5 ft/min

Between 2 and 4 minute the rate of change = -12.5 ft./min

What’s 123.45 + 67.891
Step By Step?

Answers

Answer:

123.45 + 67.891 = 191.341

Step-by-step explanation:

I don't know really know how to explain but I'll try to. So since 123.45 is the larger decimal so you put it first then below it you put 67.891.(not that it is necessary)

Then add a zero to 124.45. Meaning it will be 123.450. (It is the same number, we just have to add a zero there.)

Add then just add like you normally do. Just try doing it and you'll see.

A baseball team has won 20 games and lost 10 games. What percent of the games did the team win?

Answers

Answer:

They won 2/3 of the games, or about %66 percent.

Step-by-step explanation:

There is a total of 30 games played, becuase 20+10 is 30, and they won 20 out of 30 of the games. or 20/30. You then divide 20/30 and you will get .6666 which is 66%.

Answer:

30 %

Step-by-step explanation:

20×10=30

Or

20+10=40

Solve (v +3) - 44 = 0, where v is a real number.

Answers

the answer to your question is v=- 41

Answer: V = 41

Explanation in the photo below

What is the equation of the line that passes through the point (3,-5) and has a
slope of o?

Answers

Answer:

y = -5

Step-by-step explanation:

slope of 0 means m = 0 in y intercept form y = mx + b.

they have given you (3, -5), plug these in and solve for your equation.

remember, a line that has a 0 slope means it is a horizontal line.

y = mx + b

-5 = 0(3) + b

-5 = b

so you have, y = -5.


Sylvia bikes home along a straight road from her friend's house, a distance of 8 miles,
The graph shows her journey

Answers

Answer:

what is the question and what is the graph

Step-by-step explanation:

Lines / and m parallel. Can be represented by the 3x+4y=8. If line m passes thorough the point (2,-5), which equation can be used to find the equation of line m

Answers

Answer:

y=−34x+2.75

Step-by-step explanation:

Parallel lines have the same slope. Solve for the slope in the first line by converting the equation to slope-intercept form.

3x + 4y = 12

4y = –3x + 12

y = –(3/4)x + 3

slope = –3/4

We know that the second line will also have a slope of –3/4, and we are given the point (1,2). We can set up an equation in slope-intercept form and use these values to solve for the y-intercept.

y = mx + b

2 = –3/4(1) + b

2 = –3/4 + b

b = 2 + 3/4 = 2.75

Plug the y-intercept back into the equation to get our final answer.

y = –(3/4)x + 2.75

i need help quick! (number 7, NOT 8!)

Answers

Answer:

(-6, 18)

Step-by-step explanation:

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