What is the solution to the system of equations below?

{3x+4y=(-2)
{2x-4y=(-8)

Answers

Answer 1

Answer:

x = -2 , y = 1

Step-by-step explanation:

add the terms :

3x+2x+4y-4y = -2-8

5x = -10

x = -2

now that x = -2 , plug its value into any of the two equations (we'll take the first)

3*-2 +4y = -2

4y = 4

y = 1

Answer 2

Answer:

x = -2

y = 1

Step-by-step explanation:

{3x+4y=(-2)

{2x-4y=(-8)

{4y = -2 - 3x

{2x - 4y = -8

Substitute the value of 4y in 2x - 4y = -8

2x - (-2 - 3x) = -8

x= - 2

Substitute the value of x into 2x - 4y = -8

= 2x (-2) - 4y = -8

y = 1


Related Questions

What's the answer to 5(x+2)-2x=1

Answers

Answer:

=−3

Step-by-step explanation:

distribute, then, CLT and solve as you would.

Answer:

x=-3

Step-by-step explanation:

distribute

5(x)+5(2)-2x=1

simplify

5x+10-2x=1

simplify

3x+10=1

take 10 from each side

3x=-9

x=-3

Need help with the answer please and thank you

Answers

Answer:

$175

Step-by-step explanation:

$175 is 35% of $500 . . .

70% of x is 63. Write an equation to find the value of x, and solve the equation. What is the value of x?

Answers

Answer:

70%of x = 63

70/100 × x = 63

x=63×100/70

x=90

Step-by-step explanation:

Please help! This is urgent!

Answers

Answer:

1 meter =3.25 feet or 39 inches

Step-by-step explanation:

hope this helps

Which expression has the same value as the one below?
44 + (-12)

O A. 44 - 12
OB. 44
O C. 56
O D. 44 + 12​

Answers

Answer:

a

Step-by-step explanation:

Someone help me ASAP I really need this

Answers

Answer: reflection

Translation

Rotation

Rotation

Step-by-step explanation:

Which expression is equivalent to the area of square A, in square inches?
A
10 in.
24 in.
(10)(24)
o
10(24)
Saun and Exit

Answers

Answer:

10^2+24^2

Step-by-step explanation:

got 100% on the quiz

DO,-2(x, y)(3, 5). The point (x, y) is (1, 3) (-3/2, -5/2) (-6, -10)

Answers

Answer: -6, -10.

The question is asking you to make the coordinates negative and then multiply the negative numbers by 2, thus, -6, -10.

The coordinate of (x, y) is (-3/2, -5/2) if the -2(x, y) → (3, 5) option second is correct.

What is an ordered double?

It is defined as a representation of coordinates in a two-dimensional coordinate plane. It has a list of two elements in it, such as (x, y).

We have:

-2(x, y)  →  (3, 5)

The coordinate (x, y) changes after multiplication by factor 2

New coordinate = (3, 5)

-2x = 3

x = -3/2

-2y = 5

y = -5/2

Thus, the coordinate of (x, y) is (-3/2, -5/2) if the -2(x, y) → (3, 5) option second is correct.

Learn more about the ordered double here:

https://brainly.com/question/10757890

#SPJ2

The average house price in 2007 was 5% lower than in 2006 The average house price in 2008 was 5% greater than in 2007 Explain why the average price of house in 2008 Is not the same as the average house price in 2006

Answers

Answer:

Given that the average house price in 2007 was 5% lower than in 2006, while the average house price in 2008 was 5% greater than in 2007, to explain why the average price of house in 2008 is not the same as the average house price in 2006 the following logical reasoning must be carried out:

If, for example, in 2006 the median home price was $ 100,000, a 5% drop in 2007 would bring the median price to $ 95,000. In turn, if this price were to increase by 5% for 2008, said value would rise to $ 99,750. This is so because the 5% is calculated based on a smaller number, with which the rise will be, therefore, also smaller.

Explain what the (0,0) represents in the table.

Answers

Answer:

0,0

Step-by-step explanation:

0,0 on a graph would represent the origin.

the origin ​​​​ㅤㅤㅤㅤㅤㅤ

Denise has 4 hours to paint crafts. She would like to

spend no more than of each hour on each craft. How

many crafts can she paint during that time?

Answers

Complete Question

Denise has 4 hours to paint crafts. She would like to spend no more than 1/4 of each hour on each craft. How many crafts can she paint during that time?

Answer:

16 crafts

Step-by-step explanation:

From the above question, we know that:

1/4 hour = 1 craft

4 hours = x crafts

Cross Multiply

1/4hour × x crafts = 4 hours × 1 craft

x crafts = 4 hours ÷ 1/4 hour

x crafts = 4 × 4

x = 16 crafts

She can paint 16 crafts during that time.

Can the sides of a triangle have lengths of 19,24 and 43? If so, what kind of triangle is it?

Answers

Answer:

Yes Isosceles Triangle

Step-by-step explanation:

Im not a 100% sure but they all add up to 84 so good luck

Rectangle OPEN has diagonals intersecting at S. If m∠ENP=42 find m∠ EON, m∠ONP, m∠OSP, and m∠PSE

Answers

Answer:

m∠EON = 48°

m∠ONP = 48°

m∠PSE = 90°

4x^2+9x+10+3x^2+7x+2​

Answers

Answer:

7x2+16x+12

Step-by-step explanation:

=4x2+9x+10+3x2+7x+2

=(4x2+3x2)+(9x+7x)+(10+2)

=7x2+16x+12

need this asap please

Answers

Answer:

t>5

Step-by-step explanation:

t (temperature) > (less than) 5 (5 degrees)

t > 5

Ms. F needs you to walk her dogs Ella and Aries. She will pay you $10 for each time you take Ella and Aries out for a walk. The relationship between the money you make and the number of times you take the dogs out can be expressed as E = 10w, where E is your earnings and w is the amount of times you take Ella and Aries out. If you take the dogs out once every day for a week (7 days), how much money will you make?

Answers

Answer: $70/week

Step-by-step explanation:

E = 10w

w = 7 (1 time per day for 7 days = 7)

E = 10(7)

E = $70/week

What is the value of y in the equation 9 + y = 8? (4 points) Question 2 options: 1) 72 2) 17 3) 1 4) −1

Answers

Answer:

4) -1

Step-by-step explanation:

9+y=8

y=8-9

so y= -1

POSSIBLE POINTS: 10
Lucy has $5 more than 3 times as much money as her friend Tanya. If Tanya hast dollars, which of the following expressions could be used to represent
how many dollars Lucy has?

Answers

Answer:

5 + 3t

Step-by-step explanation:

t = amount Tanya has

Lucy = $5 more than 3x of what Tanya has

At a school play, the ratio of the number of students to adults
was 5:3. There were 60 adults at the play. How many
students were at the play?

Answers

Answer:

12+12+34+123+12

43+21+34+56+76

12+42

60/3 = 20
20x5 = 100

So 100 students

Give the product in simplest form:

Answers

Answer:

5 15/48

Step-by-step explanation:

5 times 3 is 15,  8 times 6 is 56, and 5 times 1 is 5....you can not simplify 15/48 so the final answer is 5 15/48

which number is a zero of f(x) = 2x (x + 7) ( x-4)​

Answers

Answer:

0, -7, 4

Step-by-step explanation:

Zeros of a function are values that make the function = 0

So, f(x) = 2x(x + 7)(x - 4) = 0

                x = 0 or x + 7= 0  or x - 4 = 0

                                   x = -7           x = 4

Note:  If you were to graph f(x), the graph would intercept the x-axis at 0, -7, and 4

A ball is thrown up in the air from 5 feet above the ground level. The ball reached a height of an additional 6 feet in approximately 4 seconds, and then came
down back to ground level in 5 more seconds. Which graph best represents the relationship between the height of the ball and the time?

Answers

Answer:it’s F

Step-by-step explanation:

It’s F

Is 9/5 greater than 1

Answers

Answer:

yes

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

9/5 is greater than 1 cuz the 9 is greater than 5...

5/5 is a whole number so if thats a whole number then 9/5 is equal to 1 4/5...

hope this makes sense...

Identify The missing angle
Can you show ur work how u did it?

Answers

Answer:

x = 38°

Step-by-step explanation:

in the given question,

the two angles are complementary, because sum of their measures = 90°

so,

=》52° + x = 90°

=》x = 90° - 52°

=》x = 38°

Answer:

x = 38

Step-by-step explanation:

I first took the measure of a right angle (90 degrees) Then, I subtracted 52 degrees from 90. After that I added 52 and 38 to check. The answer was 38.

7th grade math
plz help asap
the picture is attached
10 POINTS

Answers

Answer:

1. A, C, and E

2. 13.5

3. -3

4. $3.39

5. 9 1/4 miles

Step-by-step explanation:

y=-(x+4)^2+4
WILL GIVE BRAINLIEST
does the parabola open up or down? why?

does the parabola have a maximum or minimum points? Explain how you know..

what is the Axis Of Symmetry ? explain how you know.

what is the vertex?

what are the x intercepts (WORK MUST BE SHOWN)

where is they y intercept?(WORK MUST BE SHOWN)

What is the domain?

what is the range?

on what interval is the function increasing?

on what interval is the function decreasing?

use the above info to sketch a graph.

Answers

Answer:

1. up

2. (-4,4)

3. -4

4. (-4,4)

5. (-6,0)(-2,0)

6. (0,-12)

Step-by-step explanation:


[tex] - 2 \leqslant x - 3 < 4[/tex]
How do I solve this?​

Answers

Answer:

1 ≤ x < 7

Step-by-step explanation:

−2+3≤x−3+3<4+3 (Add 3 to all parts)

if a rectangle has a area of 36x^3+24x^2-18x and the width is 6x what is the length

Answers

Answer:

[tex] lenght= 6 {x}^{2} + 4x - 3[/tex]

Step-by-step explanation:

[tex]lenght = \frac{area}{width} \\ \\ = \frac{36 {x}^{3} + 24 {x}^{2} - 18x }{6x} \\ \\ = \frac{6x(6 {x}^{2} + 4x - 3) }{6x} \\ \\ lenght= 6 {x}^{2} + 4x - 3[/tex]

What is the value of tan(60)?

Answers

Answer:

√3 is the value of tan(60) as it is sin(60)/cos(60)

find an ordered pair of 5x + y = 3

Answers

Answer:

Step-by-step explanation:

Find an ordered pair that satisfies the equation 5x + y = 3.  

There are infinitely many ordered pairs that satisfy this equation.

If we were to choose y = 0, then 5x = 3, and x = 3/5, leading to the ordered pair (3/5, 0).

If we were to choose x = 1, then 5(1) + y = 3, or y = -2.  The ordered pair would be (1, -2).

And so on.

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