what is the solution 2x-y=-2 2x+4y=8

Answers

Answer 1

Answer:

The answer is

x is 0

y is 2

Step-by-step explanation:

2x-y=-2

-2x-4y=-8

 -5y=-10

y=2

2x-2=-2

2x=0

x=0


Related Questions

Please give answer and graph

Answers

Answer:

x>10/4

Step-by-step explanation:

When you combine like terms, you get 10>4x and then divide by 4 and you get x>10/4. To plot this, you put an open point on 10/4 and highlight everything to the right of it with an arrow.

what does 72 x ? = 300

Answers

Answer: 25/6

Step-by-step explanation:

Answer:

? = 4.1667

Step-by-step explanation:

300/72 = 4.1667

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

Which expressions are equivalent to 16? Select each correct expression

1 to the 16th power
2 to the 4th power
4 to the 2nd power
8 to the 2nd power
16 to the power of 0
16 to the power of 1

Answers

Answer: Choose 2 to the 4th power, 4 to the 2nd power, and 16 to the power of 1

Step-by-step explanation:

When working with exponents, whatever number is the corner of another number, multiply it by itself. For instance, if you have 2 to the 4th power, multiply 2x2x2x2 which is 16. Also there is 4 to the 2nd power which is 4x4 which is also 16. Lastly you have 16 to the power of 1 and anything multiplied by 1 stays the same.

Correct choices are 2 to the 4th power, 4 to the 2nd power, and 16 to the power of 1.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

When working with exponents, whatever number is the corner of another number, multiply it by itself.

For instance, if you have 2 to the 4th power, multiply 2x2x2x2 which is 16. Also, there is 4 to the 2nd power which is 4x4 which is also 16. Lastly, you have 16 to the power of 1 and anything multiplied by 1 stays the same.

Therefore, the correct choices are 2 to the 4th power, 4 to the 2nd power, and 16 to the power of 1.

To know more about an expression follow

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What is the solution to −6x−4≥−2(x−4) ?

x≤−3

x≥3

x≥2

x≤−1

Answers

Answer:

The correct answer is: Option 1: x≤-3

Step-by-step explanation:

Given inequality is:

[tex]-6x-4\geq -2(x-4)[/tex]

First of all, we will distribute -2 into the bracket

[tex]-6x-4\geq -2x+8[/tex]

Then we will add 4 on both sides

[tex]-6x-4+4\geq -2x+8+4\\-6x \geq -2x+12[/tex]

Adding 2x on both sides

[tex]-6x+2x\geq -2x+12+2x\\-4x\geq 12[/tex]

Dividing both sides by 4

[tex]\frac{-4x}{4} \geq \frac{12}{4}\\-x \geq 3[/tex]

As there should be only x on the left side of the inequality we will multiply the inequality with -1.

Multiplying the inequality with -1 reverses the sign of inequality

So,

[tex]x \leq -3[/tex]

Hence,

The correct answer is: Option 1: x≤-3

5(-6 + 4)=..................​

Answers

Answer:

-10

Step-by-step explanation:

5(-6 + 4)

=-30+20

=-10

Answer:

-10 or just 10 in general

Step-by-step explanation:

need help with this

Answers

Answer:

1 ½% of x = 15

3/2 × x = 15

x = 15/1.5

x = 10

So

1½ 15

— = —

100 10

Solve the inequality -2/9b>-12

Answers

Answer:

1/2

Step-by-step explanation:

Substitute x=5 into the expression 4x-8 and simplify

Answers

Answer:

4(5) - 8

20 - 8

= 12

Eidoskaijsizjzkxkxdkjajjsjeksjsii

Answers

Answer:

Yes, Yes, No, Yes

Step-by-step explanation:

Number 11. Find angle GJK

Answers

Answer:

It's 22º

Step-by-step explanation:

[tex]5x+8=7x-16\\24=2x\\12=x\\7*12-16=68\\90-68=22[/tex]

What is the length of the segment shown below. Round your answer to the nearest hundredth. (2,5) (-4,-1)

Answers

Answer:

Step-by-step explanation:

use the distance formula Emily  P1=(x1,y1)=(2,5) P2=(x2,y2)=(-4,-1)

d = [tex]\sqrt{(x2-x1)^{2}+ (y2-y1)^{2} }[/tex]

d = [tex]\sqrt{6^{2}+ 6^{2} }[/tex]

d = 8.48528

d  = 8.49

Solve the equation + 6 = 2.
Question 13 options:

A)

No Solution

B)

a = 13

C)

a = 7

D)

a = 61
Question 14 (5 points)
Solve the equation 10 + y√
y
= 14

Question 14 options:

A)

y = 576

B)

y = 4

C)

y = 16

D)

y = 2

Answers

The answer is a=7 because you have to do 7-6 which equals to 2 which a=7 is the right answer

Which equation represents the line that is parallel to y = 2 and passes through (-1,-6)?

Answers

Answer:

y=-6

Step-by-step explanation:

the line needs to be vertical to be parallel to y=2, and pass through (-1,-6)

I need help please!!!!

Answers

Answer:

A) intersecting, 1 solution

B) Same Line, infinite number of solutions.

Factor the expression using the GCF. 44-11 I NEED HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

11(4-1)

Step-by-step explanation:

11 is the greatist common factor of 44 and 11 so you factor an 11 out of both terms

44/11=4

11/11=4

Therefore the answer is 11(4-1)

Evaluate the expression: −(8 − 12) + 60 + (−4)2

Answers

Answer:

Step-by-step explanation:

here you go mate

step 1

−(8 − 12) + 60 + (-4)2  Equation/Question

step 2

−(8 − 12) + 60 + (-4)2  simplify

-(-4)+60+(-4)(2)

4+60+(-4)(2)

64+(-8)

answer

56

The value of the given expression −(8 − 12) + 60 + (−4)² will be 80.

What is the arithmetic operator?

Arithmetic operators are operators in mathematics where basic four operators involve. Addition, multiplication, division, and subtraction.

Addition =  addition of two or more numbers or variable

For example =3 + 4

Subtraction = Minus of any two or more numbers with each other called subtraction.

For example =8 - 9

Division = divide any two numbers or variable called division.

For example 7/3

Multiplication = to multiply any two or more numbers or variables called multiplication.

For example 5 × 4.

Given,

⇒  −(8 − 12) + 60 + (−4)²

⇒ -(-4) + 60 + 16

⇒ 4 + 60 + 16

⇒ 80

Hence "The value of the given expression −(8 − 12) + 60 + (−4)² will be 80".

To learn more about the arithmetic operators,

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Is all squares are quadrilaterals?​

Answers

to answer your question i think the best claim is yes

Hw help please ASAP
+10PTS

Answers

Answer:  i believe the answer is y=1/2x+4

Y=1/2x+4
Your slope is up 1 right 2 and the y intercept is at 4

The diagram shows two squares constructed on the sides of a rectangle. Write an expression for the area of Square C in terms of the areas of Square A and Rectangle B. Then simplify to find the area. (N RN.1.1-2 HELP PLSSS

Answers

Step-by-step explanation:

Since area of Square A = 7 ft²,

Side length of Square A = √7 ft.

Length of Rectangle B = √7 ft

Width of Rectangle B = 4/√7 ft

Hence Area of Square C

= (4)² / (√7)² ft² = 16/7 ft².

The area of Square C is the square of the height of the Rectangle B.

Correct responses:

[tex]\underline{Area \ of \ square \ C = \dfrac{\left(Area \ of \ Rectangle \ B \right)^2}{Area \ of \ Square \, A} }[/tex]

[tex]Area \ of \ square \ C = \underline{\dfrac{16}{7}} \, ft.^2[/tex]

Methods used for finding the area of Square C

The given area of square A = 7 ft.²

The given area of rectangle, B = 4 ft.²

Let s represent the side length of square C and let S represent the side length of square A, we have;

Area of rectangle B = S × s = S·s

Area of square A = S × S = S²

Area of square C = s × s = s²

[tex]\mathbf{\dfrac{(Area \ of \ rectangle \ B)^2}{Area \ of \ square \ A } } = \dfrac{\left(S \cdot s \right)^2}{S^2} = \dfrac{S^2 \cdot s^2}{S^2} = s^2 = Area \ of \ square \ C[/tex]

Therefore, the expression for the area of Square C in terms of the area

of Square A and Rectangle B is presented as follows;

[tex]\underline{Area \ of \ Square \ C = \dfrac{ \left (Area \ of \ rectangle \ B \right)^2}{\left(Area \ of \ square \ A\right)}}[/tex]

Which gives;

[tex]\underline{Area \ of \ square \ C = \dfrac{\left(4 \, ft.^2 \right)^2}{7 \, ft.^2}}[/tex]

By simplification, we have;

[tex]\mathbf{\dfrac{\left(4 \, ft.^2 \right)^2}{7 \, ft.^2}} = \dfrac{16}{4} \, ft.^2[/tex]

[tex]Area \ of \ square \ C = \underline{ \dfrac{16}{7}} \, ft.^2[/tex]

Learn more about squares and rectangles here:

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https://brainly.com/question/8428727

Im so close please help

Answers

You were correct on your guess, C. Circumcenter

May I have brainliest please? :)

You are running a concession stand at a basketball game. You are selling hot dogs and
sodas.Each hot dog costs $1.50 and each soda costs $ 0.50. At the end of the night, you made a total of
$78.50. You sold a total of 87 hot dogs and sodas combined. You musſt report the number of hot dogs
sold and the number of sodas sold. How many hot dogs were sold and how many sodas were sold?

Answers

Answer: 52

Step-by-step explanation: Friend me and yes that is right!

Kelli has $33 in her checking account. She then writes a check for $42. What is the balance of Kelli's bank account?

Answers

Answer:

-9

Step-by-step explanation:

42-33= 9

But she is writing a check for $42 and only has $33 so that will send her into negatives.

WILL GIVE BRAINLIEST PLS HELP
Chantal is planning to hike with some friends in the mountains. The trail map below shows the actual distance of their route from the beginning of the Blue Trail to the junction with the Red Trail, and from there to the top of Peak 1.
Chantal determined that the length of their route on the map measured 4 1/2 inches. Based on that length, what is the scale on the map?
Blue trail: 2.4 miles, Red trail: 1.6, Green trail: 1.8
A. 1 inch : 1 1/4 miles
B. 1 mile : 1 1/8 inches
C. 1 mile : 8/9 inch
D. 1 inch : 8/9 mile

Answers

Answer:

the answer is C

Step-by-step explanation:

PLEASE HELP!! WHAT IS x???

Answers

9514 1404 393

Answer:

  x = 90 degrees

Step-by-step explanation:

There are several ways to go about this (as is often the case with math problems). Here, we'll use the fact that an inscribed angle is half the measure of the arc it intercepts.

  arc DE = 2×∠DFE = 60°

  arc EF = 2×∠ECF = 60°

  arc CF = 2×∠CEF = 60°

Then arc DEC is ...

  arc DEC = arc DE +arc EF +arc FC = 60° +60° +60° = 180°

Angle DBC is half the measure of this arc, so is ...

  ∠DBC = 180°/2 = 90° = x

An integer can be positive, negative, or _____. opposite zero equivalent

Answers

Answer:

Zero is nor a positive or negative number, so im guessing the answer is 0.

Step-by-step explanation:

Please help!! Find the length of the radius of circle O.

Answers

Answer:  4.5 units

Step-by-step explanation:

OD and OC are both radii of the circle O.  All radii of the same circle are equal.  Thus,

[tex]6x+2=10x-16[/tex]

18=4x

x=4.5

Hope it helps :)

Jacob won 62 super bouncy balls playing
horseshoes at the county fair. At school he
gave two to every student in his math class. He only has 2 remaining. How
many students are in his class?

Answers

Answer:

30

Step-by-step explanation:

62 = 2x + 2

62 - 2 = 2x

60 = 2x

x = 30

-8x+1/4(20x-12)=qx-3

Answers

Answer:q= -3

Step-by-step explanation:

Let's solve for q.

8

x

+

1

4

(

20

x

12

)

=

q

x

3

Step 1: Flip the equation.

q

x

3

=

3

x

3

Step 2: Add 3 to both sides.

q

x

3

+

3

=

3

x

3

+

3

q

x

=

3

x

Step 3: Divide both sides by x.

q

x

x

=

3

x

x

q

=

3

Answer:

Which data sets have outliers? Check all that apply
14,21,24,25,27,32,35
15,30,35,41,44,50,78
16,32,38,39,41,42,58
17,23,28,31,39,45,75
18,30,34,38,43,45,68

Answers

Answer:

C.16, 32, 38, 39, 41, 42, 58

and

E.18, 30, 34, 38, 43, 45, 68

its C. & E.

they both have outliers lol

Cooper invested $1,100 in an account paying an interest rate of
3.8% compounded daily. Assuming no deposits or withdrawals are
made, how much money, to the nearest cent, would be in the
account after 10 years?
Help plzzzxx!!

Answers

Answer:

$1608.48

Step-by-step explanation:

A = P(1 + r/n)^nt

P: 1100   3: 3.8% / year     n: 365/year   t: 10 years

A = 1100 (1 + 0.038/365)³⁶⁵*¹⁰ = 1608.48

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