Mathematics High School

-2(7 – n) + 4
What is the answer to this any body know it??????????

Answers

Answer 1
2x-10 is the answerr
Answer 2

Answer:

2n+10

Step-by-step explanation:

you just distribute the -2 and you get -14+2n+4 and then add and you'll get 2n+10

if you are solving for the variable n then you would want your equation like this 2n+10=0

next you would put the 10 on the other side of the equation and have 2n=-10

finally you would divide by 2 and get n=-5

Related Questions

Will mark brainliest

Answers

Answer:

Step-by-step explanation:

1a. 2x - 4y = 2

   -x  + 4y = 3

x = 5

-5 + 4y = 3

4y = 8

y = 2

(5, 2)

1b. 2x + 3y=1

     -2x + 2y = -6

      5y = -5

       y = -1

     2x - 3 = 1

    2x = 4

    x = 2

   (2, -1)

2a.  x + 2y = 4

       2x - 5y = -1

     -2x - 4y = -8

      2x -  5y = -1

    -9y = -9

      y= 1

2x - 5 = -1

 2x = 4

  x = 2

(2, 1)

2b. 4x + 2y = 4

       x - 2y = -5

       5x = -1

        x= -1/5

    -1/5 - 2y = -5

    -2y = -4 4/5

      y= 12/5

(-1/5, 12/5)

3. 5x + 3y = 85

  11x + 5y = 163

25x + 15y = 425

-33x - 15y = -489

 -8x = -64

x = 8 regular

5(8) + 3y = 85

40 + 3y = 85

3y = 45

y = 15 mini bouquets    

(8 regular, 15 mini bouquets)

4a. 6x + 12y = -6

     18x - 12y = - 162

24x = -168

x = -7

3(-7) - 2y = -27

-21 - 2y = -27

-2y = -6

y= 3

(-7, 3)

4b. 3(6 -y) - 2y = 38

     18 - 3y - 2y = 38

     18 - 5y = 38

    -5y = 20

    y = -4

x = 6 + 4

x = 10

(10, -4)

Which statement is true regarding the function above?
A) There is a vertical shift 6 spaces up
B) there is a horizontal shift 6 spaces to the right
C) there is a vertical shift 6 spaces down
D) there is a horizontal shift 6 spaces to the left

Answers

Answer:

B.there is a horizontal shift 6 spaces to the right

Write a linear function for the data in each table using function notation.

Answers

Answer:

A. f(x) = 6.5xB. f(x) = 3x - 2

Step-by-step explanation:

Table A

This is proportional relationship

The function is:

f(x) = 6.5xTable B

The slope is:

(10 - 7)/(4 - 3) = 3

The y-intercept is:

10 - 4*3 = -2

The function is:

f(x) = 3x - 2

Answer:

A. f(x) = 6.5x

B. f(x) = 3x - 2

Step-by-step explanation:

16 ÷ 22 + (6 x 2) - 8

Answers

I did the PEMDAS method (P= parentheses, E= exponents, M= multiplication, D = Division, A= addition, S = subtraction.)

First I did what’s inside the parentheses, (6x2) and got 12.

Then I divided 16 by 22 and received 0.72.

I added 0.72 with 12 and the result was 12.72.

Last step was to subtract 12.72 - 8 and that equals 4.72
16 ÷ 22 + (6 x 2) - 8 = 4.72

Please help me! What does X equal?

Answers

Answer:

x = 75

Step-by-step explanation:

X = 180 - 78 - 27 = 75

Answer:

The answer is 75

Step-by-step explanation:

I got this answer because i added 78 and 27 then i subtracted it from 180 because that was the interior angle of a triangle and i got 75.

find the slope of the line that goes through the given points

1. (0,7) (0,-8)
2. (-7,9) (-18,9)
3. (-5,9)(7,3)
4. (-7,8)(8,-3)


find the slope of the line from the given equation
1. y=-3x-4
2. y=2x+1
3. y= 3/2x
4. y= 5/9x+10
PLEASEEE HELP ILL MARK BRAINLIST

Answers

Answer:

1st=2. (-7,9) (-18,9)

2nd=4. y= 5/9x+10

1. (0,7) (0,-8)
points belong to a vertical line. There is no slope.

2. (-7,9) (-18,9)

points belong to a constant, linear function.
Slope= 0
3. (-5,9)(7,3)

m = -6 / 12 = -1 / 2 = Slope -0.5

4. (-7,8)(8,-3)

m = -11 / 15 = Slope -0.73333

1. Marie took out a loan for $250 for a Nintendo Switch. She plans to pay the 1 point
loan off in 18 months. At an annual interest rate of 7%, how much will Marie
have paid altogether for the Nintendo Switch? *

Answers

Answer: $276.25

Step-by-step explanation:

250 times .07 = 17.5

17.5 times 1.5 = 26.25

250 + 26.25 = 276.25

Solve the system by substitution.
y = 5x
y = 9x + 4

Answers

Answer:

(-1, -5)

Step-by-step explanation:

[tex]\left \{ {{y=5x} \atop {y=9x+4}} \right.[/tex]

1. We must calculate x, for that we must substitute y, so we have:

5x=9x+4

2. Now we solve the equation.

5x-9x=4

-4x=4

x=-1

3. Now we must calculate y

y=5x

y=5(-1)

y=-5

And the answer is (-1, -5)

Which one is it???????

Answers

X-4 I hope this is right

Someone please help

Which of these statements about gross income and net income is true?

A. Gross income is a tax on all income that a worker earns, and net income is a tax paid by an employer based on a worker's wages.

B. Gross income is a tax paid by an employer based on a worker's wages, and net income is a tax on all income that a person earns.

C. Gross income is the amount an employee is paid after deductions and taxes, and net income is the total amount an employee earns before deductions are applied.

D. Gross income is the total amount an employee earns before deductions are applied, and net income is the amount an employee is paid after deductions and taxes.​

Answers

Answer:

D. Gross income is the total amount an employee earns BEFIRE deductions...

Christopher bought a car for $16,500. He paid a 4.5% sales tax for this car. How much did Christopher pay for the car in all? How much was the sales tax for the car he bought?

Answers

Answer:

$17242.50 is the total amount he paid. The sales tax is $742.50

Step-by-step explanation:

Please I need help :(

Answers

Answer:

it's D you multiply everything by 2


SOMEONE PLEASE HELP ME !

Answers

y=mx+b
m=20 (slope)
b=10 (y-int)
equation= y=20x+10

Help me please answer thanks

Answers

so the line is gonna cross on 4 on the y-intercept because in the equation that’s the y-intercept and 2 is the slope. the slope is moving up the graph by 2 because 2 is the slope. I hope this makes sense i don’t know how to simplify it more than this sorry

In ΔDEF, the measure of ∠F=90°, DE = 88 feet, and EF = 39 feet. Find the measure of ∠E to the nearest tenth of a degree.

Answers

- 47 I think this is the answer

Solve for x. −12x+13>35 Drag and drop a number or symbol into each box to correctly complete the solution.

Answers

Answer:

x < -11/6.

Step-by-step explanation:

−12x + 13 > 35

-12x > 35 - 13

-12x > 22

Divide both sides by -12 and invert the inequality sign:

x < -22/12

x < -11/6.

HELP ASAP!


Jesse serve 13 pints of orange juice at her party. How many quarts of orange is that she serve? Jesse served ____ quarts and ____ pints.

Answers

13 pints 5 quarts ihow to do this but I tried );

Peggy rode her bike 25 miles in 2 hours. At this rate, how far will she ride in 3 hours?

Answers

37.5 miles

divide 25 by 2, that gives you 12.5
multiply 12.5 by 3 to get 37.5

The ratio of the measure of the three angles of a triangle is 3:4:8. Find the mesure of the large angle

Answers

Answer:

96°

Step-by-step explanation:

Ratio of angles :

3 : 4 : 8

Sum of angles in a triangle = 180°

The value of the largest angle = angle with the largest ratio

This is the value of the angle with ratio 8

Sum of ratio : (3 + 4 + 8) = 15

Hence,

(8 / 15) * 180°

(8 * 180°) / 15

1440 / 15

= 96°

What is the answer to - (2 - 7x) if you simplify

Answers

Answer:

It would be

-2+7x

Step-by-step explanation:

The gas tank in Manny's car holds 25.05 gallons of gasoline. The car gets 36.05 miles to the gallon.

How many miles can Manny drive on a full tank of gasoline?


A. 875.0025 miles

B. 901.8000 miles

C. 903.0525 miles

D. 930.7500 miles

Answers

Answer:

C. Hope I'm right :)

Step-by-step explanation:

Because 36.05 x 25.05 = 903.0525

Hope I Helped :)

Answer:

ok here is the answer, i didnt copy.

Step-by-step explanation:

the answer is c because search it lol

Expand 4(x + 2).
4(x + 2) =

Answers

4x+8 thats the answer

Answer:

[tex]4x + 8[/tex]

Step-by-step explanation:

Hi!

So we have to use the distributive property here and distribute 4 to both the x and the 2.

So we do

[tex](4*x)+(4*2)[/tex]

Simplify further:

[tex]4x + 8[/tex]

That's your answer

Write an expression equivalent to 12+5t−4+15t+1

Answers

Answer:

20t + 9

Step-by-step explanation:

12+5t−4+15t+1

20t + 9

(Simplified version)

Answer:

The answer is 20t+9

Step-by-step explanation:

. Predict how many tiles Figure 100 will
have? The rule is y=6x+5

Answers

In figure 100 there will be 605 tiles

4. The quadratic function f (x) = (x + 1)2 – 4 is shown on the graph below.

What is the equation for the axis of symmetry?


Answers

Answer:I DO NOT KNOW

Step-by-step explanation:FIND OUT YOURSELF LOL

there are 54 tickets to be shared and divided to section Z and section Y in the ratio 4:5. How many tickets will section Y received?
A.20
B.24
C.30
D.34​

Answers

Answer:

C.30

Step-by-step explanation:

total ratio=9

y=[tex]\frac{5}{9}[/tex]×54=30

KLMN is a Parallelogram. LK = 20 cm and KM= 24.
K
L
If KL MN is also a rectangle, find the following measures:
NM =
LN=
QM=
KN=
N
M

Answers

Answer:

NM =LK=20cm(side of parallelogram are equal)

LN=KM=24cm(diagonal of parallelogram are equal)

QM=1/2×24=12cm(diagonal bisect each other)

KN=√(24²-20²)=13.26cm(by Pythagoras theorem)

PLEASE HELP
A company makes steel rods shaped like cylinders. Each rod has a diameter of 8 centimeters and a height of 20 centimeters. If the company used 28,134.4 cm3 of steel, how many rods did it make?

Answers

Answer:

1,172.3 cm³

Step-by-step explanation:

Find the volume of one rod, then divide the total volume of steel used by the volume of one rod.  The volume of one rod is

V = (πd²/4)h

d = 4 cm

h = 20 cm

Plugin the numbers and get V in cm³, then divide the given total volume of 28,134.4 cm³ by V.  If the result is not an integer, then round down.

Add

20 + 4 = 24

Then

28,134.4 ÷ 24 = 1172.26

Rounded to the nearest 0.1 or  the Tenths Place = 1,172.3

Therefore, 1,172.3 rods will be made per hour.

Is 9x negative or positive?
-9x + 17x + -8x

Answers

Answer:

-9x is negative but the answer of the whole problem would be 0.

express as a fraction in simplest form 4 to 36

Answers

Answer:

Step-by-step explanation:

4/36/2/2

2/18/2/2

1/9

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