Use elimination to solve each system of equations.
4x + y = 23
3x - y = 12

Use elimination to solve each system of equations.
4x + y = 23
3x - y = 12

Answers

Answer 1

Answer:

x=5

y=3

Step-by-step explanation:

7x=35

x= 5

3 x 5 - y= 12

15-y = 12

y= 15 - 12

y= 3

so , 5, 3

hope it helps !


Related Questions

Dana bought 300 straws. The straws were sold in packages of 30. How many packages did Dana buy?

Answers

Answer:

10 packages

Step-by-step explanation:

300/30 is 10 that is the unit price.

Hope this help plz mark brainliest :D

Answer:

the answer is 10

Step-by-step explanation:

all you had to do is 300/30

please help me ill give brainliest to the right answer

(plato course unit 3)

Answers

The answer to your question is A

Whichever equation represents the data shown in the table?

Answers

Answer:

y= -3x+6

Step-by-step explanation:

Write the point-slope equation for the
line using the coordinates of one of
the labeled points.
(-3,2)
(3,4)

Answers

So if u do y2-y1/x2-x1 your equation would look like 4-2/3+3 since a negative- a negative equals a positive so it would be 2/6 which simplifies to 1/6 so y=1/6x+0

Help!!! How do you figure it out? Will give 20 points

Answers

Answer:

its c i think

Step-by-step explanation:

Answer:

I really want to say its ASA but im not really sure

Step-by-step explanation:

Solve a + b + c = 55, b+c= 13, and a + c = 45 for c.

Answers

Answer:

answer is 10

Step-by-step explanation:

a+c+b+c=55

PLEASE HELP :( ILL MARK BRAINLIEST

Answers

Answer:

You subtract 3n from both sides to get to to the second equation

Step-by-step explanation:

and then you get 3n-12=18,if you go further down the line and add 12 to both 12 and 18 you will have 3n=30 and divide N =10

first one! mark me brainliest bro

Complete this sentence: The longest side of a triangle is always opposite the
A. shortest side
B. angle with the smallest measure
C. second-longest side
D. angle with the greatest measure

Answers

Answer:

Letter d :}

Step-by-step explanation:

When solving using Elimination:
After multiplying the top equation by -6, what would the equations look like?
x + 2y = 8
6x + 9y = 39
-6 . (x + 2y = 8)
6x + 9y = 39

Answers

Answer:

-6 * (x+2y=8)

Step-by-step explanation:

1.) lost negative sign  

2.) correct

3.) lost negative sign

-6 * (x+2y=8) = (-6x-12y=-48)

3/4 page per 2 minutes

how much of a page in 1 minute?​

Answers

Answer:

3/8

Step-by-step explanation:

0.75/2=x/1. Solve proportion: 0.75*1/2=x x=0.375 or 3/8.

Hope this helps plz mark brainliest :D

Help! Its math!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

The answer is the screen shot that I just took

11. At a delicatessen there were 20 different kinds of cheese and 30 kinds of meats. What is the ratio of cheese to meats at this delicatessen?​

Answers

Answer:

2 to 3 in simplest form

Step-by-step explanation:

I'm sry pls help! im bad at math:(((​

Answers

Choice B: I’m good a math and

STEP BY Step EXPLAINATION: 45 is double 25 and if you double 3.49=6.98 and choise B shows 4.79 soooo it’s choise B boooom.

Pls mark me Brainlyist

A large bucket holds 5 gallons of water, which is about the same as 19 liters of water. A small bucket holds 2 gallons of water. About how many liters does it hold? Do not include units (liters) in your answer.

Answers

Answer:

the number of liters does it hold is 7.6 liter water

Step-by-step explanation:

The computation of the number of liters does it hold is shown below:

Given that

The 5 gallons of water would be equivalent to the 19 liters of water

So, the equation is

5 gallons = 19 liter water

And we know that

1 gallons would be equivalent to 3.8 liter water

So for 2 gallons it would be

= 3.8 liter × 2

= 7.6 liter water

Hence, the number of liters does it hold is 7.6 liter water

-6+x4=-5
Please show steps

Answers

Answer:

x= 1/4

Step-by-step explanation:

-6+x4=-5

+6       +6

x4= 1

/4    /4

x= 1/4

Answer:

 [tex]\boxed{x_{4}=1}[/tex]

Solution Steps:- Steps for solving 2 step-equations -

______________________________

1.) Add 6 to both sides:[tex]-6+6=[/tex] Cancels out[tex]-5+6=1[/tex]

- You can simplify this to be in fraction form: [tex]\frac{1}{4}[/tex], But it can't be simplified further.

______________________________

URGENT PLS HELP!!
Kirsten just found out that Snap will no longer be free, and she is devastated. Snap will charge 3 cents for each picture sent and 9 cents for each video. Her parents are willing to allow her to spend no more than 15 dollars a month. Kirsten knows that based on her typical usage she will send more than 200 Snaps a month. Model Kirsten’s monthly Snap budget and show all possible combinations. Identify one plausible scenario that could occur.

Answers

Answer:

what the person above me said

Step-by-step explanation:

Answer:

The answer would be B.

Step-by-step explanation:

I took the test, I got a 100!

have a nice day! :)

Find x. Round to the nearest tenth

Answers

Answer:

not here

Step-by-step explanation:

Answer:

it should be 29

Step-by-step explanation:

i have a photo can someone solve it

Answers

Answer:

I think the answer is B.6.4ft

Step-by-step explanation:

help me pleaseee lol!!!!!!!

Answers

Answer: b = 4

Step-by-step explanation: isolate the variable by diving the sides that dont contain a variable

a farmer has eight and one six acres of land unplanted the farmer plants corn in three quarters of the remaining land how many acres does the farmer use for corn show how to use the model to help you find the number of acres of corn​

Answers

Answer:

old mcdonald had a farm eee aye eee aye oooh

Step-by-step explanation:

And on that farm there was a dinosaur eee aye eee aye oooh with a RAwR RawR here and a rAWr RAWR there here a RawR there a rawR everywhere a RAwr rAWR ol mcdonald had a farm ee aye ee aye ohhhhhhhh

PLEASE HELP ME THIS IS DUE IN TWO HOURS! :(


The length of Rectangle 1 is 3.2 x 10^5 m. The width of Rectangle 1 is 1.6 x 10^4 m. What is the area of Rectangle 1? Write the answer in Scientific Notation.


Find the area of Rectangle 2 if its length is 1.28 x 10^7 m and its width is 8 x 10^3 m. Write the answer in Scientific Notation.


How many times larger is the area of Rectangle 2 than the area of Rectangle 1? Write the answer in Scientific Notation.


How many times larger is the area of Rectangle 2 than the area of Rectangle 1? Write the answer in Standard Form: __________ times larger

Answers

Answer:

2.0 x [tex]10^{1}[/tex]

Step-by-step explanation:

1. length = 3.2 x [tex]10^{5}[/tex] m

width = 1.6 x [tex]10^{4}[/tex] m

Area of a rectangle = length x width

                                = (3.2 x [tex]10^{5}[/tex]) x (1.6 x [tex]10^{4}[/tex])

                                = 5.12 x [tex]10^{9}[/tex] [tex]m^{2}[/tex]

2. length = 1.28 x [tex]10^{7}[/tex] m

   width = 8 x [tex]10^{3}[/tex] m

Area of a rectangle = length x width

                                 = (1.28 x [tex]10^{7}[/tex]) x (8 x [tex]10^{3}[/tex])

                                 = 1.024 x [tex]10^{11}[/tex] [tex]m^{2}[/tex]

[tex]\frac{Area of rectangle 2}{Area of rectangle 1}[/tex] = [tex]\frac{1.024*10^{11} }{5.12*10^{9} }[/tex]

                       = 20

                       = 2.0 x [tex]10^{1}[/tex]

Thus,

The area of rectangle 2 is 2.0 x [tex]10^{1}[/tex] times greater than the area of rectangle 1.

can someone help for brainliest

Answers

Answer:

hypotenuse is 34

Step-by-step explanation:

a²+b²=c²

16²+30²=c²

256+900=1156

√1156 =34

hypotenuse =34

Little Red Riding Hood falls asleep in the forest, 5km away from her grandmother’s house. The next morning, she walks toward her grandmother’s house at a constant speed of 1.5 km/h for a while. If she is now 2km away from her grandmother’s house, how much time will she have walked that morning?

Answers

Answer:

2 hours

Step-by-step explanation:

If she was 5km away and is now 2km away she walked 3 km. To walk 3 km at 1.5 km/h you have to divide 3km by 1.5km to get 2 hours

I'll mark brainliest ! please help !​

Answers

Answer:

220.075 per month

Step-by-step explanation:

you need to divided the month by 12 because there is 12 months

Alex earned $176 for working
8 hours. How much did Alex earn
per hour?

Answers

He earned 22$ per hour

Someone help me with the bottom question I will mark brainliest

Answers

Answer:

B

Step-by-step explanation:

Multiply 3.25*4+3.75= 16.75

Answer:

B

Step-by-step explanation:

First, we can set up an equation to determine how much it will cost for any amount of time greater than one hour.

[tex]c=total cost[/tex]

[tex]h=[/tex] additional hours after the first hour

The equation I came up with is:

[tex]c=3.75+3.25h[/tex]

Now, using the information given to us in the problem, we can solve using this equation. You're using the bike for 5 hours, but since the first hour has a different rent, [tex]h=[/tex] 4.

So,

[tex]c=3.75+3.25(4)[/tex]

[tex]c=3.75+13\\c=16.75[/tex]

The cost of renting a bike for 5 hours is $16.75.

Hope this helps!

HELPPP ASAP WILL MARK BRAINLEST!!!

Answers

Answer:

19

Step-by-step explanation:

x will be 19. Hope this helps!!!

Which statement best describes a graph of paired points that form a proportional relationship?

A) a straight line can be drawn through all the points and the line passes through the point (3,0).
B) a straight line can be drawn through all of the points but the line does not pass through the origin.
C) a straight line can be drawn through all the points and the line passes through the origin.
D) a straight line can be drawn through all the points and the line passes through the point where x = 0 and y = 0.

Answers

Answer: d took the test

Step-by-step explanation:

How would you compare two ratios given in words?

Answers

Answer:

Write the ratios as fractions. Then identify a common denominator. Rewrite the fractions using the common denominator. Compare the numerators. The greater numerator indicates the greater ratio.

Step-by-step explanation:

.5 times 6 pls answer this this is for a real test

Answers

Answer:

.30

Step-by-step explanation:

The US government attempted to stop the Chinese government from profiting from selling cooked cat and dog. In Word War III the Asians formed a group with the Indians to go hunting in the US for pets. They rode through the streets in wooden wagons with spears and metal chopsticks. Every once in a while they'd spot civilians walking with their pets. The group of hungry aliens would crouch upon the victim and bang them in the head with cinder blocks and bricks. Once dead they take the pet, they would place them in cages for transport to the cook site. The government couldn't tolerate this foul behavior so they planned all out raids on these gourmet terrorist. Over time our US government has put a stop to these actions all over america. So the Chinese became angry and created coronavirus.

Answer:

The answer is 30

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