Identify a solution to this system of equations:
-4x+3y=23
(x - y = -7
A. (-5,2)
B.(-2,5)
C. (-3,4)
D. (4,-3)​

Answers

Answer 1

Answer:

-4y+3y = -28+23

-y = -5

y = 5

thus x =-2

that is why b is right option


Related Questions

Find uw if vw= 5/8 in

Answers

Answer:

4/8, which reduced is 1/2. Final answer!

Step-by-step explanation:

IF RIGHT PLZ GIVE BRAINLIEST

THANK U

HAVE A GREAT DAY AND BE SADE :)

XD

i need help
someone pls

Answers

Answer:

≈ 66.5 m

Step-by-step explanation:

Using the sine ratio in the right triangle

sin12° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{d}{320}[/tex] ( multiply both sides by 320 )

320 × sin12° = d , then

d ≈ 66.5 m ( to 1 dec. place )

|x+3| x>5
now can you plz just give the answer

Answers

Answer: I would love to help you but I am confused on what you mean by the question.

Step-by-step explanation:

9d + 8= 26 what solution is d?

Answers

Answer:

2

Step-by-step explanation:

9d+8=26

9d=26-8

d=18/9

d=2

Help ASAP Ill mark brainliest

Answers

The answer is letter D

Like terms in the expression
3n+7-n-3

Answers

Answer:

3n and n, 7 and  -3

Step-by-step explanation:

Like terms are those that can be added or subtracted, so variables are like terms and numbers (constants)

3n and n,7 and -3

like terms are those that can be added or subtracted,so variable are like terms and numbers(constant)

Adding and subtracting matrices
Question 16

Answers

Answer:

it is 16 and not 17 18 19 or 20 it is only 16

:Find x+y, if: 2x+3y=8 and 3x+5y=13

Answers

Answer:

x=1

y=3

Step-by-step explanation:

Heres a photo with explanation

The solution of the equations 2x + 3y = 8 and 3x + 5y = 13 will be (1, 2). Then the value of the expression x + y will be 3.

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The equations are given below.

2x + 3y = 8             ...1

3x + 5y = 13            ...2

Multiply equation 1 by 3 and equation 2 by -2, then we have

6x + 9y = 24

-6x - 10y = - 26

Add the above equations, then we have

- 26 + 24 = 9y - 10y

y = 2

Then the value of the variable 'x' is calculated as,

3x + 5(2) = 13

3x + 10 = 13

3x = 3

x = 1

Then the value of the expression x + y is calculated as,

⇒ x + y

⇒ 1 + 2

⇒ 3

The solution of the equations 2x + 3y = 8 and 3x + 5y = 13 will be (1, 2). Then the value of the expression x + y will be 3.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

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Starting money = $350.
Interest rate = 2.5%
Time - 3 years.
How much interest?
a) $7.50
b) $26.25

Answers

Answer:

Step-by-step explanation:

I=Prt

I=350(0.025)3

I=$26.25

x + y = 30

2x + 4y = 84

Substitution
or
Elimination
I

Answers

Answer:

(X,Y)(18,12)

Step-by-step explanation:

x + y = 30

2x + 4y = 84

___________

2x+2y=60

2x+4y=84

_________

-2y=-24/-2y

y=12

2x+4(12)=84

2x+48=84

2x=84-48

2x/2=36/2

X=18

Abertura formada por dos
semi-rectas con un mismo
origen llamado vértice.

Answers

Umm I don’t know I need help to

5 numbers :
mode = n median= n+1 mean = n+2 Range = n+3

find 2 sets of numbers

Answers

Answer:

3,3,4,6,6

4,4,5,6,7

5,5,6,6,8

Step-by-step explanation:

mode = n

median= n+1

mean = n+2

Range = n+3

let sets:

a,b,c,d,e

mode = n, at least two of them are the same and equal to n

n,n,c,d,e

median belong to the set, in ascending order:

n,n,n+1,d,e

which means d,e ≥ n+1, d≠e

mean is n+2

5(n+2)=n+n+n+1+d+e

2n+9=d+e

Assume e is the maximum:

Range is n+3:

e-n=n+3

e=2n+3

d=6≥n+1

n≤5,

Set is n,n,n+1,6,n+3

n+1≤6≤n+3

3≤n≤5

3,3,4,6,6 bimodal

4,4,5,6,7

5,5,6,6,8 bimodal

The dimensions of a rectangular prism are n, n + 7, and n + 8. Use the formula V = ewh to write a polynomial in standard form for the volume of the prism

Answers

Answer:

n³ + 15n² + 56n

Step-by-step explanation:

The formula for the volume of a rectangular prism is V = l × w × h.

We are given the dimensions of this rectangular prism: n, n + 7, n + 8.

We can assume that these are the length, width, and height of the rectangular prism (not in any specific order).

Let's substitute these values into the formula to find the volume of the prism, written as a polynomial in standard form.

V = l × w × hV = (n) × (n + 7) × (n + 8) V = (n² + 7n) × (n + 8) V = n³ + 8n² + 7n² + 56n V = n³ + 15n² + 56n

The volume of the prism is n³ + 15n² + 56n. This is in standard form because the terms are listed in descending power order.

On January 1st you bought 100 shares of Ford Motor Company (F) for $8 per share . On October 2nd the stock price is $10 per share. You sell the 100 shares at $10 per share. How much did you make or lose (\$) ? What was your return on investment (ROl) ?

Answers

Answer:

$200; $800

Step-by-step explanation:

100 x8 =800

100 x10=1000

1000-800= $200 (what you earn)

the money that you pay back is the return on investment so $800

The amount of profit made by the shares is given by A = $ 200

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

The cost of 1 share on January 1st = $ 8

The number of shares = 100

So , the total cost of 100 shares = $ 800

And , the cost of 1 share on October 2nd = $ 10

The number of shares = 100

So , the total selling price of 100 shares = $ 1,000

And , the profit A = total selling price of 100 shares - cost of 100 shares

On simplifying the equation , we get

The profit made A = $ 1,000 - $ 800

The profit made A = $ 200

Hence , the equation is A = $ 200

To learn more about equations click :

https://brainly.com/question/19297665

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Which of the following expressions has a value of 3? Select all that apply.
o 6 = -2
4- (-1)
(-1)(-3)
(-2) - 1
O 15 = -5
o 4+1

Answers

Answer:

1) -6/-2

3) (-1)(-3)

A party hat has a diameter of 18 centimeter and a height of 25 centimeter. Find the volume of air it can occupy.

Answers

Answer:

2120.58 centimeters³

Explanation:

First divide the diameter by 2 to get 9. The volume of a cone is 1/3*π*r²*h so  1/3*π*9²*25

This equals 2120.59 cm³ (cubed)

2(x + y + z) ???????

Answers

Answer:

2x + 2y + 2z

Step-by-step explanation:

Allison, Buck, Chantal, and Doug compete in a 40-yard dash.
How many ways can the 4 competitors finish in 1st, 2nd, 3rd, and 4th place?

Answers

16 ways. 4 times 4 equals 16.

In AKLM, m K = 59° and mZL = 95º. Which list has
the sides of AKLM in order from longest to shortest?
KL, LM, MK
MK, KL, LM
LM, MK, KL
LM, KL, MK
KL, MK, LM
MK, LM, KL

Answers

Answer:

no entiendo nada :v :( pero grasias por los puntos

Mr. Hodges wants to build a fence around his entire rectangular garden.What is the total distance around the garden/

Answers

Answer:

32units square

Step-by-step explanation:

Perimeter of the garden is equal to the total distance around the garden

Perimeter of the garden =2(Length+Width)

Let assume the following

Length = 10cm

Width = 6cm

Perimeter =2(10+6)

Perimeter = 2(16)

perimeter = 32units

Hence the total distance around the garden is 32units square

Answer:

96 feet

Step-by-step explanation: took quiz pls mark brainliest

w
Z
1. Which of the following terms best
describes the relationship between
Zw and 2X?
A corresponding angles
B same-side interior angles
C alternate interior angles

Answers

Answer:

b

Step-by-step explanation:


In a box of chocolates, 2/5 of the chocolates are milk chocs, and the rest are plain chocs. What is the ratio milk chocolates : plain chocolates?

Answers

Answer:

[tex] \frac{2}{5} : \frac{3}{5} [/tex]

Step-by-step explanation:

[tex] \frac{2}{5} = milk \: chocolate[/tex]

They need to add up to 1 so 5-2=3 (3 will be your numerator) you need denominator won't change.

[tex] \frac{ 3}{5} = plain \: chocolate[/tex]

now we need to put it in a ratio.

[tex] \frac{2}{5} : \frac{3}{5} [/tex]

What is the answer for x and y?

Answers

Answer:

x = 110

y = 70

Step-by-step explanation:

x = 110  {Corresponding angles}

y +40 = x        {Exterior angle property}

y + 40 = 110

       y = 110 - 40

       y = 70

Please help ! This is due today .

Answers

Hey! In the first box, color 4 squares blue. I am not really sure exactly how many to color blue in the second one, but I would go with coloring 2 blue. In the third box, do not mark any squares blue. Hope this helps!

Answer:

Step-by-step explanation:

1)  because there are 10 total boxes in box 1  and they want 2/5 of them color in 4 boxes to make 4/10  which can reduce to 2/5

2) they say make it unlikey that a blue box will be picked.. so color in one box

3) now don't color any of the boxes.. so no matter which boxes is picked.. there isn't any blue ones. :)

2. 3x = у у= 2х + 2 2​

Answers

Answer:

Step-by-step explanation:

3x = y        ------------(I)

y = 2x + 22 ---------------(II)

Substitute y = 2x + 22 in equation (I)

3x = 2x + 22           {Subtract 2x form both sides}

3x -2x = 22              

      x = 22

Plugin x = 22 in equation (I)

3*22 = y

y = 66

Answer:

Step-by-step explanation:

3x = y

y = 2x + 22

3x = 2x + 22      

3x -2x = 22              

x = 22

3x22 = y

66=y

The expression 3 (x-9) equivalent to

3 (x-9)

Answers

Answer:

3x-27

Step-by-step explanation:

3(x-9)

3x-3X9

3x-27

Answer:

D.... hope this helps

Step-by-step explanation:

The value v of your quarters in cents) is a function of n, the number of quarters you have.
a. Give 2 input-output pairs that represent this function.
b. Write an equation that represents this function.
c. Find the output when the input is 10.
d. Identify the independent and dependent variables.

Answers

Answer:

a) (2, 0.5)  (4, 1)

b) V(n) = 0.25n

c) $2.50

d) # quarters = independent

value = dependent

Step-by-step explanation:

The independent value is the number of quarters and the dependent variable is the value of cents and the  equation that represents this function is,

[tex]v(n)=25\times n\rm \;\;cents[/tex]

How to write algebraic expression?

Algebraic expression are the expression which consist the variables, coefficients of variables and constants.

The algebraic expression are used to represent the general problem in the mathematical way to solve them.

Steps to write down the simple algebraic expression-

Identify all the factors of the expression.Assume a variable for the changing values.Put a coefficient for the variable, if there is any rate of change of variable.Use constant numbers for the fixed values.

a. Give 2 input-output pairs that represent this function.

There is total 25 cent is 1 quarter. Thus, when if there are 2 quarters, then the value of cent is 50 and when there are 4 quarters, then the value of cents is 100 cents.

Hence, the two pairs should be as,

(2, 50), (4, 100)

b. Write an equation that represents this function.

As, v is the value of quarters in cents. There is total 25 cent is 1 quarter. The total quarter is n. Thus, the function can be given as,

[tex]v(n)=25\times n\rm \;\;cents[/tex]

c. Find the output when the input is 10.

Put the value 10 on the place of n in the above equation as,

[tex]v(10)=25\times (10)\\v(10)=250\rm cents[/tex]

The output when the input is 10 is 250 cents.

d. Identify the independent and dependent variables.

The independent value is the number of quarters and the dependent variable is the value of cents.

Hence, the independent value is the number of quarters and the dependent variable is the value of cents and the  equation that represents this function is,

[tex]v(n)=25\times n\rm \;\;cents[/tex]

Learn more about the algebraic expression here;

https://brainly.com/question/2164351

Help!
Please show work

Answers

Answer:

131°

Step-by-step explanation:

to find the total degrees of this polygon, we use the equation

=> n - 2 × 180°                         (n= number of sides)

5 - 2 × 180° = 540°

now by using angle sum property,

540° = 80° + 148° + 81° + 100° + [tex]x[/tex]°

540° = 409° + [tex]x[/tex]°

[tex]x[/tex]° = 540° - 409°

[tex]x[/tex]° = 131°

Please help it’s just one question <3

Answers

The answer for this is B.

Kirby middle school some students or survey to see which social media app they use the most the results are shown below solver and explain how to calculate and what percent of students to snap the most

Answers

Answer: 44%

Step-by-step explanation:

First add up the number of students using each app the most to find out the total number of students surveyed:

= 8 + 22 + 20

= 50 students

To find out the percent of students using Snap, multiply the proportion of those using Snap the most out of the total number of students surveyed by 100%.

= 22/50 * 100%

= 44%

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