8n +7(2n-4)=4(7 + 3n) - 6

Answers

Answer 1

Answer:

n=5 hope this helps

Step-by-step explanation:


Related Questions

2x2 – 3x -9= (Factor completely.)​

Answers

Answer:

The answer is 31. :)

Step-by-step explanation:

it should be (2x+3) * (x-3)

Phoebe bought 2/3 of a yard of green ribbon and 1/3 of a yard white ribbon to use on her quilt. She decided to exchange 1/3 yard of white ribbon for 1/3 yard of yellow ribbon. How much white ribbon does phoebe have to use on her quilt?

Answers

She has no more white ribbon because she exchanged it for yellow.

URGENT: WILL MARK BRAINLIEST

Answers

Answer:wait 15 min then I will have thee answer

Step-by-step explanation:

Find the coordinates of the focus and equation of the directrix for the parabola given by y2 = −4x. The general formula for this parabola is y2 = 4px. Therefore, the value of p is . The coordinates of the focus are . The equation of the directrix is .

Answers

Answer:

The coordinates of the focus are [tex]F(x,y) = (-1,0)[/tex] anf the equation of the directrix is [tex]x = 1[/tex], respectively.

Step-by-step explanation:

Let be [tex]y^{2} = -4\cdot x[/tex], which represents a parabola with a horizontal axis of symmetry. To find the location of the focus and to determine the equation of the directrix we must find the distance between focus and vertex ([tex]p[/tex]), dimensionless, a value than can be extracted from the following definition:

[tex](y-k)^{2} = 4\cdot p \cdot (x-h)[/tex] (Eq. 1)

Where:

[tex]x[/tex] - Independent variable, dimensionless.

[tex]y[/tex] - Dependent variable, dimensionless.

[tex]h[/tex], [tex]k[/tex] - Coordinates of the vertex, dimensionless.

By direct comparison, we get the following coincidences:

[tex]h = 0[/tex]

[tex]k = 0[/tex]

[tex]4\cdot p = -4[/tex] (Eq. 2)

From (Eq. 2) we get that distance between focus and vertex is:

[tex]p = -1[/tex]

Which is consistent with the fact parabola has an absolute maximum.

Now, the location of the focus is:

[tex]F(x,y) = (h+p, k)[/tex] (Eq. 3)

If know that [tex]h = 0[/tex], [tex]k = 0[/tex] and [tex]p = -1[/tex], coordinates of the focus is:

[tex]F(x, y) = (0-1, 0)[/tex]

[tex]F(x,y) = (-1,0)[/tex]

And the equation of the directrix is represented by:

[tex]x = -p[/tex] (Eq. 4)

([tex]p = -1[/tex])

[tex]x = 1[/tex]

The coordinates of the focus are [tex]F(x,y) = (-1,0)[/tex] anf the equation of the directrix is [tex]x = 1[/tex], respectively.

Answer:

The general formula for this parabola is y2 = 4px.

Therefore, the value of p is  

✔ –1

.

The coordinates of the focus are  

✔ (–1,0)

.

The equation of the directrix is  

✔ x = 1

.

Step-by-step explanation:

If g(x) = x2 − 4, find g(5).

Answers

Answer:

21

Step-by-step explanation:

5

Answer:

[tex]\boxed {21}[/tex]

Step-by-step explanation:

Find [tex]g(5)[/tex]:

[tex]g(x) = x^{2} - 4[/tex]

-Apply [tex]5[/tex] for variable [tex]x[/tex] to the equation:

[tex]g(5) = (5)^{2} - 4[/tex]

-Solve the expression:

[tex]g(5) = (5)^{2} - 4[/tex]

[tex]= 25 - 4[/tex]

[tex]= \boxed {21}[/tex]

Therefore, the final answer is [tex]21[/tex].

Multiply. Write your answer as a fraction in simplest form.

5/6(−8/15)=

Answers

Answer:

-4/9

Step-by-step explanation:

I used a calculator.

5/6(−8/15) in simplest form is -4/9.

What is a fraction ?

A fraction is written in the form of a numerator and a denominator.There are two types of fractions. One is proper fraction in which numerator is less than the denominator and another one is improper fraction in which denominator is less than the numerator.All fractions can be written in the form of p/q, where q ≠ 0 cause anything divided by 0 is undefined.

According to the given questions we have to multiply two fractions        (5/6)(-8/15) which is

= -40/90.

= -4/9.

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Answer?!?????????????

Answers

Answer:

A i think

Step-by-step explanation:

Answer:

its   c i hope i helped-shelby

Step-by-step explanation:

Help plss!!!
A jewelry store paid $75 for a necklace at
wholesale cost. The store will sell the necklace
for $250. What is the percent markup on the
necklace?

A. 175% increase
B. 250% increase
C. 233% increase
D. 300% increase

Answers

Answer:

75 increased by 233% = 249.75 if you are rounding up this is the answer

Step-by-step explanation:

This is true because 249.75 is the closest the other guy who wrote the wrong answer is lying. (update) it just got deleted i told you

help plsss .....!!!!

Answers

Answer:

p=-7

Step-by-step explanation:

30+6p=7(p+6)-5

30+6p=7p+42-5

30+6p=7p+37

6p-7p=37-30

-1p=7

p=-7

Giovanni went to Los Angeles, California, for the summer to visit his cousins. He used a map of bus routes to get from the airport to his cousin’s house. The distance from the airport to his cousin’s house is 56 km. On his map, the distance is 4 cm. What is the scale factor?

Answers

I’m pretty sure it’s 14 km. Hope I helped :) Since I did 56 divided by 4 since it will be one cm is 14 km.

please help me with this

Answers

D- 42

It needs to equal 180, and 180-138 is 42

Answer:

The answer is D: 42

Step-by-step explanation:

Angle 7 and angle 138 are supplementary and must add up to 180

Angle 7 is congruent to angle 6 through CPCTC (Corresponding Parts of Congruent Triangles are Congruent)

Angle 7 and 6 are corresponding angles

you must find angle 7 becasue Angle 7= Angle 6

angle 7=x

138-x=180

solve for equation you get

x=42

Angle 7 = 42

so that means that Angle 6 is 42

is 13/3 rational or irrational and why?

Answers

Answer:

The decimal form of 13/3 is a rational number. and decimals are rational

If f(x)=−6x+4, Find f(x)=46

Answers

Answer:

Step-by-step explanation:

-6x + 4 = 46

-6x = 42

x = -7

There are 12 students in the gym class. If 4 students can sit on 1 bench, how many benches are needed for all students ?

Answers

Answer:

3 benches needed

Step-by-step explanation:

Answer:

3 benches

Step-by-step explanation:

4 people to one bench

12 people divided by 4 = 3 benches

Suppose that you plan on taking a summer job selling magazine subscriptions. The magazine company will pay you 75 cents for selling the first subscription. For each additional subscription sold, the magazine company will pay you 5 cents more than what was paid for the previous subscription. How much will you earn by selling 150 magazine subscriptions?

Answers

Answer:

671.25

Step-by-step explanation:

Sean began jogging to live a healthier lifestyle. On his first run, he ran one-half mile. He increased his workouts by adding two miles a month to his run. He wrote the equation f(x)= 0.5 + 2x to model his progress. The variable x represents the number of

miles he runs.
months he runs.
miles he ran the first day.
calories he burns

Answers

Answer:

b) months he runs

Step-by-step explanation:

on edge 2020 || pls mark brainliest the other guy is wrong dont listen to them!!

Answer:

B) Months he runs

Step-by-step explanation:

100% on edge 2021 :)

Hope This Helped!

What is the equation of this line

Answers

Answer:

y = 1/2x - 3

Step-by-step explanation:

Slope: Up 1 over 2

Y-Int: -3

y=mx+b

Idk how to do this?!!

Answers

Answer:

no idea you're welcome

m BXA = 30° 20', m CXB = 40° 35'
m CXA
°
'

Answers

Answer:

Please make me brain list

Step-by-step explanation:

A soccer team practices 3 times a week. Each practice lasts for 110 minutes. The team practiced for 14 weeks during the season.

Answers

Answer:

i just answerd this on a nother queston from u go look at that

Step-by-step explanation:

A 4-pack of museum tickets costs $30.28. What is the unit price?

Answers

Answer:

7.57

Step-by-step explanation:

30.28/4 = 7/57

Please help, will mark brainliest for the correct answer

Answers

Answer:

C. 23/21

Step-by-step explanation:

Your answer is c 23/21
Please mark brainliest

Molly wants to buy a dress that costs $20. She has a coupon for 40% off, and there is a 10%
sales tax. How much will she pay altogether? Answer the questions to find out. 3.How much is the 10% tax on the sale price? Explain how you found your answer.​

Answers

Answer:

13.20$ :)

Step-by-step explanation:

40% off of 20$ is 12$ and 10% of 12$ is 1.20$ add that and you get 13.20$

Solve for x.

x+2/3=−1/6

Please help I'll give brainliest

Answers

Answer:

The answer is

x=-5/6


[tex] \frac{100}{1000} = {10}^{x} [/tex]

Answers

Exact Form:
X=1/100

Decimal form:
X=0.01

solve for z
-cz+6z=tz+83

Answers

Answer:

the answer to your equation is Z=0(with a slash on the = sign)

Step-by-step explanation:

-cz+6z-6z=tz+83-6z

-cz=tz+83-6z

Divide both side by -z

simplify and you get Z=0

z= –83/c-6+t
explanation: move all terms to the left side and set equal to zero. then set each factor equal to zero.

ABC is a straight line. which equation can be used to find the measure of the unknown angel?

Answers

Answer:

A: 180 -45

Step-by-step explanation:

Since it is a straight angle, it will equal 180 degrees. Since 45 is already taken, u would subtract it from 180.

180-45=135

thus, your answer is 180-45

hope I helped!!!

Matter is in a liquid state when its temperature is between its melting point and its boiling point. Suppose that some substance has a melting point of negative 35.84 degrees Upper C and a boiling point of 310.69 degrees Upper C . What is the range of temperatures in degrees Fahrenheit for which this substance is not in a liquid​ state? (Hint: Upper C equals five ninths left parenthesis Upper F minus 32 right parenthesis ​) Express the range as an inequality. Let x represent the temperature in degrees Fahrenheit. What is the range of temperatures for which this substance is not in a liquid​ state? nothing ​(Type an inequality or a compound inequality. Simplify your answer. Use integers or decimals for any numbers in the expression. Round to three decimal places as​ needed.)

Answers

Answer:

96.512 °F < x < 591.242 °F

Step-by-step explanation:

We are given;

Melting point = 35.84 °C

Boiling point = 310.69 °C

Now, we are given that formula to convert °C to °F is;

°C = (5/9)°F

Thus if the temperature in Fahrenheit is x, then;

Melting point is; 35.84 °C = (5/9)x°F - "32"

x = ((9 × 35.84)/5) + 32

x = 96.512 °F

Similarly, for Boiling point;

Boiling point is;

310.69 °C = (5/9)x°F - "32"

x = ((9 × 310.69)/5) + 32

x = 591.242 °F

Now, we are told that matter is in its liquid form when it is between melting and boiling point.

Thus, range of x in inequality form is;

96.512 °F < x < 591.242 °F

Can somebody help me on 14?

Answers

It isn’t them going up or down a hill. It is the speed changing

Answer:

It is the speed changing

Step-by-step explanation:

becauses it is speed vs time

Evaluate the equation for the indicated value, f(n)=5n+8 for f(4),

Answers

you would need to put 4 in for (n)so, 5(4)+8 then solve. 5 times 4=20 plus 8 is 28. I hope I could help!

The value of the function f(n)=5n+8 for f(4) will be 28.

What is a function?

A function is defined as the expression that set up the relationship between the dependent variable and independent variable.

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.

Given function is f(n)=5n+8. The value of the function at equal to 4 will be calculated as below:-

f(n)=5n+8

f(4) = ( 5 x 4 + 8 )

f(4) = 20 + 8

f(4) = 28

Therefore, the value of the function f(n)=5n+8 for f(4) will be 28.

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