What is the value of the x variable in the solution to the following system of equations? (1 point)

4x + 2y = 12
x − y = 3

0
−3
3
2

Answers

Answer 1

Answer:

-3

Step-by-step explanation:

Answer 2

Answer:

3

Step-by-step explanation:

4x + 2y = 12

x − y = 3

Make it able to cancel the variable y.

x*2 − y*2 = 3*2

2x − 2y = 6

Add the equations together now that y can be canceled out. Add each like term of the separate equations together.

   4x + 2y = 12

+  2x − 2y = 6

   6x + 0 =  18

6x = 18

6      6

x = 3

I hope this helps!


Related Questions

If f(x) = 9-2 |x+2|, find f(-7).
-15
-1
1
19

Answers

Step-by-step explanation:

f(x) = 9 - 2|x + 2|

When x = 7, f(-7) = 9 - 2|(-7) + 2|

= 9 - 2|(-5)|

= 9 - 2(5)

= 9 - 10

= -1.

9514 1404 393

Answer:

  -1

Step-by-step explanation:

Put -7 where x is and do the arithmetic.

 f(-7) = 9 -2|-7+2|

  = 9 -2|-5| = 9 -2·5 = 9 -10

  f(-7) = -1

estimate of 2728/124​

Answers

Answer: the real answer is 22 but a way for you to get a good estimate would be too look at the equation as 2730/120 and then you would get 22.75.

Step-by-step explanation:

Answer: the real answer is 22 but a way for you to get a good estimate would be too look at the equation as 2730/120 and then you would get 22.75.

Step-by-step explanation:

DESPERATE WILL GIVE BRAINLIST AND THANKS
Graph y= –12x–6 .

(PLEASE SHOW IT GRAPHED FOR ME)

Answers

Answer:

Here it is!

Step-by-step explanation:

I graphed it. The second one is just to show the points.

The points are (0,-6) and (-1/2,0)

Brainly pls!

Estimate and then solve 8,784 ÷ 61 = ___. answers: 133 134 143 144 I WILL MARK U BRAINLEIST IF ITS RIGHT​

Answers

Answer:

The answer is 144

Step-by-step explanation:

Answer:

Ummm...

8,784/61=

144, D ??

can someone please help me out with this.​

Answers

this is not a function

Write two like terms using whatever variable(s) you'd like. Explain why these are like terms.

Answers

-3x and 100x
They are like terms because they have the same variable.

Solve: 0.3 + d = 7.1 d = _____

Answers

Answer:

d= 3/61

Step-by-step explanation:

4a I do not understand the process

Answers

Answer:

9/40

Step-by-step explanation:

He needs 5/8, he already has 2/5, so still needed is 5/8-2/5.

To add or subtract fractions, the denominators must be equal.

Simplest approach is to multiply them. 8 times 5 is 40, so 40 is the new denominator we need for both fractions.

So first we convert 5/8 to 25/40.

Then we convert 2/5 to 16/40.

Now we can subtract them:

25/40 - 16/40 = 9/40.

9/40 cannot be simplified so this is the final answer.

There are some basic rules you need to know to work with fractions. If above work is too fast, comment below for deeper explanation.

The answer is 9/40.

All you need to do is subtract 5/8 - 2/5 and to do that, you would need a common denominator. So just,

5 2
— —
8 5

Multiply the two bottoms to get 40 and do the same thing with the top that you did with the bottom so....

5 x 5 = 25
— —
8 x 5 = 40

2 x 8 = 16
— —
5 x 8 = 40

Subtract 25 - 16 = 9 and keep the denominator the same so 9/40 is your answer.

Use numerals instead of words. 5 less than a number is equivalent to 1 more than three times the number. The number is __ ?​

Answers

Answer:

byeeeeeeeeeeeeeeeeeeeeee

Answer:

t uzi TV CRT currently

Fitzpatrick

7 miles on 1/3 gallon of gas =
miles per gallon

Answers

Answer:

21 Miles per gallon

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

7*3

bus a leaves every 30 mins
bus b leaves every 20 mins
at 10 am both buses leave the station together
work out the next time they will leave at the same time

Answers

Answer:

Step-by-step explanation:

Find the LCM of 30 & 20

30 =  2 * 5 * 3

20 = 2 * 2 * 5

LCM = 2 * 3 * 2 * 5 = 60

60 minutes = 1 hour

So, again at 10am both will leave at the same time

Answer:

11 am.

Step-by-step explanation:

That would be the LCM of 20 and 30 which is 60 minutes.

So the nexrt time will be 10.00 + 60 mins

= 11.00 am.

45/4x+1=5, help please

Answers

Answer

x= 16/45 (as a fraction)

Step-by-step explanation:

Enrique predicts that he can make additional money from sales of accessories and services for computer products sold by his store. The table at the right shows predicted percent returns for such sales. For example, if the store makes x dollars selling computer products, Enrique predicts the store will make 0.05x dollars from selling accessories. Part A In January and February of this year, the store made $2,500 from sales of accessories and services. Let x represent the amount the store will make from sales of computer products from March through December. Write an equation that represents the predicted amount y that the store will make from sales of accessories and services for the entire year. If Enrique predicts sales from accessories and services for the entire year will be $5,000, about how much money must be made from computer product sales from March through December? Explain.

Answers

Answer:

Following are the solution to this question:

Step-by-step explanation:

x was its full computer product revenue from March to December.  In january and february, the revenue towards products and services before x quantities for computer product revenues will happen between March to December is $2,500.  

Whenever x quantity is sold, then 0.05x quantity was sold for supplies and equipment.  

The sum of accessories to sell should be calculated, indeed, year-round.  

It helps us to split into two parts  

y = accessory sales in January and February + accessories sales in March and December  

Use item 2  

y = $2,500 + March to December accessories sale  

Now use sections 1 and 3  

y = $2,500 + 0.05x

The above equation rewriting gives  

y = 0.05x + $2,500 (a)  

This formula is compared with a standard y = mx+c interrupt slope  

We got a pitch of 0.05 and a pitch of $2,500.

Whats the answer to 4x-5=2-x asap

Answers

Answer:

x=1.4

Step-by-step explanation:

1.4

Put the x’s on one side and the rest on the other then solve for x

So...

4x + x = 2 + 5

5x = 7

5x/5 = 7/5

X= 1.4

Note: when switching sides the sign’s
(+ and -) get switched. A positive sign becomes negative and vice versa

help please and maybe explain the answer if you have time

Answers

Answer:

I would say that it's A 1/3 because it's the slope and that's what a rate of increase is

James calculated the height of a cylinder that has a volume of 324 pi cubic inches and a radius of 12 inches. His work is shown below. V = B h Step 1: 324 pi = pi 12 squared h Step 2: 324 pi = 24 pi h Step 3: StartFraction 324 pi over 24 pi EndFraction = StartFraction 24 pi over 24 pi EndFraction h Step 4: h = 13.5 pi inches What is the first error that James made when calculating the height of the cylinder? In step 1, he substituted into the volume formula incorrectly. In step 2, he calculated 12 squared incorrectly. It should be 144 rather than 24. In step 4, the Pi should have canceled, making the correct answer 13.5 cm. James calculated the height of the cylinder correctly.

Answers

Answer:

I believe the answer is B let me know if it's wrong

Answer:

(B) In step 2, he calculated 12 squared incorrectly. It should be 144 rather than 24.

what is the equation of this graph?

Answers

Answer:

C. x=4

Step-by-step explanation:

In this graph the x value never changes, it is always equal to four. In this line the slope is undefined and there is no y-intercept. For all straight vertical lines, the equation will be x equals to whatever x value it is.

Please help me with this

Answers

Answer:

A

Step-by-step explanation:

If f(x) = 2x^2 +1, what is f(x) when x = 3?
O1
O7
•13
O 19

Answers

Answer:

19

Step-by-step explanation:

Plug 3 in for (x)

You'd have: 2(3)²+1

Solve. Do parentheses first so... 3²=9

You now have: 2(9)+1

Solve

18+1 = 19


16. Keisha has a bag that contains 3 red, 2 orange, 1 yellow, and 2 purple marbles. She will
randomly choose 1 marble from the bag. What is the probability that Kelsha will choose
an orange marble?
O.
3
8
2
-bh
1
0
8
o
0
1
4
2

Answers

Answer:

1/4

Step-by-step explanation:

you add 3+2=5+2=7+1=8 which is the total amount 8. Then the question is asking What is the probability that Kelsha will choose

an orange marble then the orange marble is 2 which is 2/8. Then simplify 2/8 get to 1/4.

3 (5р — 3) = 5 (p — 1)

Answers

15p - 9 = 5p - 5

Hope this helps and have a nice day!!!

(Don’t forget to mark branliest if it is right!!!)

5. - (m+) =
— Чт - 1=34

Answers

Answer:

The objective of this study was to examine the chronic effects on lower-body strength in resistance trained men of performing varying training volumes over 6

Step-by-step explanation:

PLEASE HELP DUE IN 6 MINS!!!!!!!!!!!!!!!!!!!!!
Box of nails: $3.80

Box of screws:$5.25

Claw Hammer:$12.95

Electric Drill:$42.50


a.Write two expressions to represent the total cost of 3 boxes of nails, 2 boxes of screws, 2 hammers, and 1 electric drill.


b.What is the total cost of the items purchased?

Answers

Answer:

Step-by-step explanation:

a. 3n+2s+2h+1x=42.50

b. 90.3

HELLP NOW I NEED ANSWER AND WORK/EXPLANATION!(Emily’s car broke down the weekend before she started a new job. She borrowed $880 from her parents, at an annual interest rate of 3%, to quickly pay for the car repairs. If Emily paid her parents a total of $893.20 in six months, how much simple interest did she pay?

Answers

Answer:

13.20 or 1.5%.

Step-by-step explanation:

Since Emily borrowed 880, you need to subtract 893.20 from 880. That equals 13.20. The percentage of interest is 1.5 because 6 months is half of a year and the annual interest rate is 3 percent.

Need help solving #7 please

Answers

Answer:

False

Step-by-step explanation:

The equation says 21 is greater than or equal to 27, so it is false

.....................​

Answers

Answer:

...?

Step-by-step explanation:

Find what x equals please

Answers

Answer:

180-(35+28)->180-63=117 and 180-117=63 then 63+36=99 and 180-99=81 so x=99°

Cherise plays basketball. The list shows the number of points she scored in each of her last six games. 12. 16. 10. 26, 14, 12 What is the mean number of points Cherise scored? O A 12 B. 13 C. 15 D. 16​

Answers

anser:15

Step-by-step explanation:first add 12+16+10+26+14+12=90divide by how mnay numbers in this case 6 90 divied=15

Mean of given dataset is 15.

What is mean?

It is the sum (total) of all the values in a set of data, such as numbers or measurements, divided by the number of values on the list is called mean.

Given dataset

12, 16, 10, 26, 14, 12

Mean = [tex]\frac{12+16+10+26+14+12}{6}[/tex]

= [tex]\frac{90}{6}[/tex]

= 15

Mean of given dataset is 15.

Find out more information about mean here

https://brainly.com/question/11163338

#SPJ3

shoutout to lester bc i know he's gonna answer this ;) !

Answers

Answer:

A (-3,9)

Step-by-step explanation:

ok easy they they us

R(2,1) and R'(-4,8)

subtract 6 from y and add 7 to y

ok lets solve for S'

S(3,2) now subtract 6 and add 7

(3,2)+(-6,7)

(-3,9)

You and your friend are in a canoe race. Your friend is a half mile in front of you and paddling 3 miles per hour. You are paddling 3.4 miles per hour. You are 8.5 miles from the finish line. How long will it take to catch up to your friend?

Answers

Answer:

To catch your friend you have to paddle for 1.25 hours

Step-by-step explanation:

Your friend is 0.5 mile in front of you and paddling 3 miles per hour. You are paddling 3.4 miles per hour.

Since the speed is the relationship between the space traveled by an object and the time used for it, then the distance is defined as:

distance= speed*time

Being x the time it takes to reach your friend, then your friend's position will be:

3miles per hour*x + 0.5 (since your friend  is 0.5 mile in front of you)

while your position is:

3.4 miles per hour*x

When you reach your friend the position of both should be the same. So:

3*x + 0.5= 3.4*x

Solving:

0.5= 3.4*x - 3*x

0.5= 0.4*x

0.5 ÷0.4= x

1.25= x

This means that to catch your friend you have to paddle for 1.25 hours

Other Questions
please give me correct answer this is major how do humans benefit from photosynthesis Please help me I want to pull up my grade. PLEASE GIVE CORRECT ANSWER!!! What principle did Aoka emphasize while preaching about Buddhism?A. karmaB. forgivenessC. nonviolenceD. reincarnation a group of fifth graders collected 46 cans of food to donate to three food banks. If each food bank is get an equal number of cans, how many cans do the each receive Select the statement that describes this expression: 13 + fraction 1 over 2 x (6 2 + 6) A: 13 more than half of 6 more than the quotient 6 and 2 B: 13 more than half of the quotient of 6 and 6 minus 2 C:Half of 13 multiplied by the quotient of 6 and 2 plus 3 D:13 plus half of 6 divided by 2, then subtract 6 a precision CD player costs $600 but was sold for $525 due to damage . the percentage loss on the CD player Which pair of events are independent of each other? A. getting an even number on the first and second roll of the die B. selecting an ace from a deck of cards, and then drawing another ace without replacing the first C. drawing a ball from a bag, and then drawing another ball without replacing the first D. drawing a red paperclip from a bag of paperclips, and then drawing another red paperclip without replacing the firstPLZ HELP AND HURRY Science 6th grade digital INB- You dont know what parts of the ground are safe and what parts are thin crusts of soil covering fires or sinkholes. Design a system that can access the area and take measurements that show changes in the fire. (No right or wrong answer just need someone to come up with something and quick.) What security concept states a user should only be given the minimum set of permissions required to perform necessary tasks whats -5/8 divided by -5/16 Find the slope of the line passing through the points (-3. 7) and (2. -6). emily is entering a bicycle race for charity. her mother pledges $0.40 for every 0.25 mile she bikes. if emily bikes 6 miles how much will her mother donate I need some help. WILL try to give brainliest! My birthday is tommorow and I dont wanna do this. PLEASEEEEFor this assignment, submit a well-written explanation of each religious/cultural conflict. You may include information, such as the origin, location, effects, and reasons for the conflict, as appropriate.Support your conclusions with facts, examples, and other evidence.1. Taliban versus Western Values2. Hinduism versus Social Equality3. Christianity versus Islam versus the Former Soviet Union4. Buddhism versus Southeast Asian Countries5. Catholics and Protestants in Ireland Help me plzz i need help with this !! Image by Mariana Ruiz VillarrealWhich phase of mitosis is shown in the diagram?O anaphaseO metaphaseO telophaseO prophase Evaluate. -2 1/4 -(-3 2/5). facts abt ancient Egypt in ur own words What is the answer to thisshow your work use Pythagorean Theorem to explain wether or not 7, 8, and 14 could be the side lengths of a right triangle.