Mathematics High School

Solve each system by using substitution
X= Y - 2 4X + Y = 2

Answers

Answer 1

Answer:

10

Step-by-step explanation:

Answer 2

Answer:

(0, 2 )

Step-by-step explanation:

Given the 2 equations

x = y - 2 → (1)

4x + y = 2 → (2)

Substitute x = y - 2 into (2)

4(y - 2) + y = 2

4y - 8 + y = 2

5y - 8 = 2 ( add 8 to both sides )

5y = 10 ( divide both sides by 5 )

y = 2

Substitute y = 2 into (1) for corresponding value of x

x = 2 - 2 = 0

Solution is (0, 2 )

Related Questions

x+8 = 15 + 4x - 7

How many solutions are there

Answers

Answer:

One Solution: 0

Step-by-step explanation:

Step 1:

x + 8 = 15 + 4x - 7       Equation

Step 2:

8 = 15 + 3x - 7       Subtract x on both sides

Step 3:

8 = 8 + 3x         Combine Like Terms

Step 4:

0 = 3x       Subtract 8 on both sides

Answer:

x = 0

Hope This Helps :)

Are similar and congruent the same? please explain your answer

Answers

Answer:

Congruence essentially means that two figures or objects are of the same shape and size. Similarity means that two figures or objects are of the same shape, though usually not of the same size.

Step-by-step explanation:

2x(x^3-8)
X^2+7x+10=0
2nd term in expansion of (y-2x)^4

Answers

Answer:

10.7

Step-by-step explanation:

Ben can type 153 words in 3 minuets. At this rate, how many words can he type in 10 minuets?

Answers

Answer:

510

Step-by-step explanation:

153/3=51 (words per min)

51x10=510 (words per 10 min)

Answer:510

Step-by-step explanation:

guys please help what is 3 2/5 x 4 1/3 help i need quick answer and please show your work:)

Answers

Answer:

8 21/25

Step-by-step explanation:

so first make it 17/5 and 13/5. then times 17 by 13. the 5 by 5. then reduce it.

hope i helped.

Answer:

14 11/5

Step-by-step explanation:

3 2/5 x 4 1/3

convert to improper fraction

17/5 x 13/3

LCM of 3,5=15

17/5x3/3 x 13/3x5/5

51/5 x 65/15

221/15= 14 11/15

decimal value=14.73

the area of the rectangle

Answers

Answer:

8x6=48

Step-by-step explanation:

Answer:
48 units^2

Explanation:
Area of a rectangle=length*width

When we count the units for the length on the graph, we get 8. When we count the units for the width, we get 6.

Area=length*width
Area=6*8
Area=48

I hope this helps! Please comment if you have any questions.

Find the slope of the line through the given points:
(-5, 7) and (-5, 11)

Answers

Answer:

the slope of the line through the given points is x equals negative five.

When evaluating StartFraction (6.28 times 10 Superscript 12 Baseline) Over (3.14 times 10 Superscript 4 Baseline) EndFraction, what will be the exponent of 10 in the quotient?

Answers

Answer:

16

Step-by-step explanation:

Answer:

C. 8

Step-by-step explanation:

just did the quiz

What are the missing parts that correctly complete the proof? Given: Point A is on the perpendicular bisector of segment P Q. Prove: Point A is equidistant from the endpoints of segment P Q. Image: A horizontal line segment P Q. A midpoint is drawn on segment P Q labeled as X. A vertical line X A is drawn. A is above the horizontal line. The angle A X Q is labeled a right angle. The line segments P X and Q X are labeled with a single tick mark. A dotted line is used to connect point P with point A. Another dotted line is used to connect point Q with point A. Drag the answers into the boxes to correctly complete the proof. Statement Reason 1. Point A is on the perpendicular bisector of PQ¯¯¯¯¯. Given 2. PX¯¯¯¯¯≅QX¯¯¯¯¯¯ Response area 3. ∠AXP and ∠AXQ are right angles. Response area 4. Response area All right angles are congruent. 5. AX¯¯¯¯¯≅AX¯¯¯¯¯ Reflexive Property of Congruence 6. △AXP≅△AXQ Response area 7. ​ AP¯¯¯¯¯≅AQ¯¯¯¯¯ ​ Response area 8. Point A is equidistant from the endpoints of PQ¯¯¯¯¯. Definition of equidistant Look below me

Answers

Answer:

These are the answers in order

Step-by-step explanation:

1. Definition of bisector

2. Definition of perpendicular

3. ∠AXP ≅ ∠AXQ

4. SAS Congruence Postulate

5. Corresponding parts of congruent triangles are congruent

The missing parts that complete the proof are;

2) Definition of a bisector.

3) Perpendicular Definition.

4) ∠AXP ≅ ∠AXQ

6) SAS Congruence Theorem.

7) Corresponding sides of 2 congruent triangles are congruent.

We are given that;

Point A is the perpendicular bisector of PQ

Point A is equidistant from the endpoints of PQ.

2) We are told that PX = QX; Since A bisects PQ at X, it means it divides it into 2 equal parts. Thus, this id true because it corresponds with the definition of a bisector.

3.  ∠AXP and ∠AXQ are right angles; Since perpendicular means right angle or 90°, we can say that this statement is true because it corresponds with the definition of perpendicular.

4. All right angles are congruent; This simply means they are equal. Thus, the two right angles here ∠AXP and ∠AXQ are congruent. We can write this with congruency symbol as; ∠AXP ≅ ∠AXQ

6. △AXP≅△AXQ; This means that △AXP is congruent to △AXQ. From the diagram, we can see that AP = AQ and that QX = PX and that ∠AXP = ∠AXQ. This means 2 corresponding sides and one corresponding angle are equal and the congruence theorem this depicts is SAS Congruence Theorem.

7. AP = AQ; This is true because we are told A is equidistant from both P and Q. Also, from the SAS congruency theorem, we can say that the corresponding sides AP and AQ are congruent.

Read more at; https://brainly.com/question/11357763

2. What are the advantages and disadvantages of online banking?

Answers

Answer:

24/7 account and service access.

Speed and efficiency.

Security and Identity Theft Concerns

Step-by-step explanation:

Juan bought a used bike from his uncle $20.6 each month for 2 years. What was the total amount Juan paid for the bike?

Answers

Answer:

$494.40

Step-by-step explanation:

What is 9820897324798237464287634261937278 Times 13691283681723697821369781207 ?

Answers

Answer:

1.3446069e+62

Step-by-step explanation:

Yeah what that guy said pretty much

what is 67-u=182 i got 249 and ik it is wrong

Answers

Answer:

Step-by-step explanation:

67 - u = 182

67 - 182 = u

-115 = u

Find the value of x using segment addition.

Answers

You combine both 2x-12 and x+2 and 11 which makes the equation

2x-12+x+2= 11

The you get your answer which is

X=7

You're making a poster to support your friends for homecoming .your original photo is 4inches by inches. you want the photo on the Poster to be 4feet by 6 feet. What is the scale factor of this dilation. (Feet Change into inches

Answers

Answer:

The scale factor is 12

Step-by-step explanation:

12in/3in=4in

4*4=16

16*3=48in by

12/6=2in

6*12=78

What is the result of 2 divided by 4/10 ?1/5 4/5 5 20

Answers

The answer to this problem is 5.

Answer:

The answer is C) 5

What is the distance from 10 to -5 on a number line?

Answers

The answer is 15 because the absolute value of -5 is 5 and the absolute value of 10 is 10. You add them together to get the distance in between them to get 15.

Solve this equation: -3(x - 14) + 9x = 6x +42
O
Solving this equation results in the statement 0 =0. Because this is a true statement, the equation has a unique solution
O
Solving this equation results in the statement 6 = 0. Because this is a false statement, the equation has infinitely many solutions.
O
Solving this equation results in the statement 0 = 0. Because this is a true statement, the equation has infinitely many solutions.
Solving this equation results in the statement 6 = 0. Because this is a true statement, the equation has no solution

Answers

Answer:

"Solving this equation results in the statement 0 = 0. Because this is a true statement, the equation has infinitely many solutions."

Step-by-step explanation:

6x+ 42= 6x=42

I'M FOR SURE 100%

Pls answer need soon help help

Answers

Answer:

14:8 = 7:4 =28:16

Step-by-step explanation:

equivalent ratio:

14:8 = 7:4 =28:16

Under the seven the number is 4 the number above 16 is 56, and those are on the table and you should be able to do the rest of the problem from there.

help me solve this pls lol
64x²+y²

Answers

Answer:

( 8 x + y )  ( 8 x − y )

Step-by-step explanation:

What is 3 1/2?
A. -2/-7
B. -3 1/2
C. 3 1/3
D. -2/7

Answers

C 3 1/2
The lines in between the number means absolute value. This means that’s when the number is simplified it would become positive. Since 3 1/2 isn’t negative it would just stay the same

|x| +6>8 pls help its due by midnight

Answers

Answer:

x< -2 or x>2

Step-by-step explanation:

subtract 6 from both sides to get |x|>2.

From here, we know that x can either be negative or positive.

The positive version will just be the equation itself, or x>2

The negative version is that equation flipped, or x<-2

Answer:

Step-by-step explanation:

Move the constant to the right and then calculate then separate into your possible cases find the intersection then find the union

Yanir has $50 use grids to model and calculate each amount how much is 9% of $50

Answers

$4.50 is the answer

Answer:

4.5

Step-by-step explanation:

2. How many batches can you make
with 15 cups of flour and 6
teaspoons of vanilla? Indicate the
additional batches by adding more
ingredients to your diagram.

Answers

Answer:

3 batches

Step-by-step explanation:

Dndbdbbdbdbbdhdndndjjdjdjdjdjd

Plzzzzzzz I neeed number 7 I’ll give brainly

Answers

Answer:

Removing the -6 makes the average go from 4.1 to 5.2

Removing the -6 makes the median go from 4 to 5

Step-by-step explanation:

Average:

-6+3+3+3+3+5+6+6+8+10 = 41

41/10 = 4.1 (This is the mean/average)

If we remove -6, then:

3+3+3+3+5+6+6+8+10 = 47

47/9 = 5.2222 (This would be the new average)

So removing the -6 makes the average go from 4.1 to 5.2

Median:

The median of (-6+3+3+3+3+5+6+6+8+10) is between 3 and 5, so the median is 4.

Without -6, the median of (3+3+3+3+5+6+6+8+10) is 5.

So removing the -6 makes the median go from 4 to 5

answer for immediate brainliest

Answers

Answer:

some

Step-by-step explanation:

Answer:

Some, since naturals number are essentially counting numbers / any whole number excluding zero: 1, 2, 3, 4, 5, 6, 7, ............

For instance, you can't have 0 of a person so natural numbers can represent a set of people.


Which answer is it I’m doing my quiz rn

Answers

Answer:

10

Step-by-step explanation

3 x 4 = 12

8 + 12 = 20

20 / 2 = 10

Answer:

B, 10

Step-by-step explanation:

1) Multiply 3 by 4. You get 12

2) Add 8. That leaves you with 20

3) 20 divided by 2 equals 10

:) Good luck on your quiz

In 2016, a billionaire's net worth was approximately $3.6 x 109. That same year, it
was reported that the average teacher salary was $45,000 per year. Using the
given numbers, how many times more was the billionaire's net worth than a
teacher's salary?

Answers

Answer:

all you do is multiply 3.6 and 109 to see if its 45,000 per year

Step-by-step explanation:

Kayty please help me!
What's the square root?

Answers

Answer:

Square root

Step-by-step explanation:

a number which produces a specified quantity when multiplied by itself

Is the sequence bellow
geometric?
6, 12, 18, 24, 30, 36, 42

Answers

Answer:

Yes because its a pattern of sixes???

Answer:

No

Step-by-step explanation:

There is no common ratio between these numbers

12/6 = 2

18/12 = 1.5

24/18 1.333 etc

However, this is an arithmetic progression as it has a common difference of 6

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