Mathematics Middle School

1/2n + 1/2n + 1/2n = 7
what is the value of n? include a check to check your answer.

Answers

Answer 1

Answer:

N = 8/4

Step-by-step explanation:

Multiply all terms by n and cancel:

1/2+1/2+1/2=7N

8/7=7n (Simplify both sides of the equation)

7n=8/7/7

           -

           7

(Divide both sides by 7)

n= 8/49

Related Questions

The first person to get all the answer correctly gets Brainliest

Answers

Answer:

Step-by-step explanation:

1. 0.9 miles per minute

Hey
Help me please:) :)

Answers

The answer is 68 or B:68

For Amy's cell phone plan, she pays $30 per month and $0.05 per text message. She wants to keep her bill under $60 per month. Which inequality represents the texts, t, Amy can send each month while staying within her budget?

Answers

Answer:

.05x + 30 < 60

Step-by-step explanation:

.05x + 30 < 60

.05 is the cost per text. Since we don't know how many text messages she sends, we have to use x to represent it. We know she pays $30 every month no matter what so, we can write .05x + 30. < means it has to be LESS than $60 NOT EQUAL TO, but less than.

I hope this helps you out!

Which figure is made with all triangular faces?
A. all pyramids
B. triangular prisms
C. triangular pyramids
D. triangular cubes

Answers

The anser is c. Triangular pyramids!

Triagular pyramids or tetrahedrons, are composed of only triangular shaped sides.

Hope this helps, if not, comment below please!!!

:L

Need help ASAP PLEASE
Which two have values located between 20 and 21 on a horizontal number line?
[tex]\frac{\sqrt 82}{2}[/tex]
3[tex]\sqrt{42}[/tex]
9[tex]\sqrt{5}[/tex]
6.5π
9π

Answers

the third one and forth one are right.

1.Dakota bought 1.7 pounds of​ ham, 3.15 pounds of​ onions, and 6 cans of soup. What was the total cost before sales​ tax? Round your answer to the nearest cent.

2.The sales tax for the food Dakota bought is​ $0.79. He has a coupon for​ $1.85 off any purchase. Use your answer for 15 to find the final amount Dakota needs to pay.

Answers

Answer: 15.73

Step-by-step explanation:

2/3p = 30
what is the value of p, include a check to check the answer

Answers

p=45
i checked if it’s right with a calculator and it is

Why is 18 : 3 and 6 : 1 equivalent

Answers

Answer:

6+6+6=18  1+1+1+1+1+1=6

Step-by-step explanation:

Step-by-step explanation:

3, 6, 8, 12, 15, 18

18 is the sixth number in the 3 times table and 3 is the first. You then make it into its simplest form. 18-6 and 3-1

I don't know if that is helpful at all but I don't really know how else to explain it.

I NEED HHELP ASAP STOP SENDING ME LINK

Answers

Answer:

The answer is B

Step-by-step explanation:

hope that helps

i’m pretty sure the answer is B

14 ⅛ x 14 ⅛ x 1 ⅓ =
pls help me

Answers

Answer:

if it is mixed fraction form 266 1/48

If not then 12769/48

Step-by-step explanation:

Have a nice day.

Can someone help please

Answers

The answer is The second choice (B)

What is the measure of ∠ABC?

120°

125°

60°

55°

Answers

ABC=55 I hope this helps

Plz Help
Expand.
Your answer should be a polynomial in standard form.
-4w(w^2-9)=

Answers

Answer:

-4w³ + 36w

Step-by-step explanation:

-4w(w² - 9)

-4w³ + 36w

Answer:

The expanded form is [tex]y=-4w(w^2 - 9)[/tex]

Simplified form is [tex]-4^3+36w[/tex]

Step-by-step explanation:

.ASAP HEEEEEEELP TTwTT

Answers

Answer:

Step-by-step explanation:

The left goes to the right and the other right goes to the left

heeeeelp pleaseee :)

Answers

The formula of a volume is V = l*w*h

The prism is 4 cm long, 1.4 cm wide, and 3 cm tall.

4 * 1.4 * 3 = 16.8

The volume is 16.8 cubic cm.

Pleaseeeee answer I will mark brainliest for best answer ^>^

Answers

3 batches cus 5.25/1.75=3 :)
B) 3 batches
If you turn both fractions improper and divide them you get three.

PLEASE HELPPPPPPP
MAKE SURE TO ANSWER ALL OF THE QUESTIONS!!!!!!!!!!!!!

Answers

Answer:

Please do not just hand strangers you entire test! They will fool you and give you the wrong answers.

Step-by-step explanation:

Answer 1: D

Answer 3:C

Answer 2: B

Answer 4: Cannot determine

It costs $48.05 to get into the team park and then, $1.50 for every ride Michael goes on. He spent a total of $87.05. Write and solve an equation to find the number of rides that Michael went on.

Answers

Answer:

48.05+1.5x=87.05

Step-by-step explanation:

48.50 is the one time entry fee, and you add that to how much he spent on rides. you calculate that by taking the cost per ride and multiplying it by how many rides he went on, but since we do not know that number, we use algebra:

subtract 48.05 from each side to get this:

1.5x=39

now, you want to get the x by its self, so you divide each side by 1.5 to get this:

x=26

so, michael went on 26 rides :)

The entry fee is 48.05 so the first number in the equation should be 48.05. Every ride cost 1.50 though but we don’t know how many rides he got on but the we will find out. The first step is to write the equation which it 48.05+1.50a=87.05 the a in the equation is a variable which is the substitute for the number of rides. Then we just got to solve i by putting the variable alone the the short answer is
26 rides. MARK ME AS BRAINLYIST PLZZZZZZ

Solve

y = [tex]\frac{175}{x + z}[/tex] when x = 17 and z = 8

If you show your work I will give you branist

Answers

7
substitute the value of the variable into the expression and simplify
The answer is Y=175/17+8
=175/25
=7

I am trash at math


16+ __ = 44

Answers

Answer:

28

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

44 - 16 = 28

16 + 28 = 44

Plz mark as brainliest if correct! Have a nice day!!!

-Lil G

Which quantity does this number line represent?
A)less than 5
B)less than 4
C)less than 3
D)less than or equal to 4

Answers

Answer:

less than or equal to 4

Step-by-step explanation:

Answer:

Less than 5

Step-by-step explanation:

I'm sorry I got it wrong the last time!!

What features do all right triangles have in common? ATwo legs and a hypotenuseincorrect answer BTwo equal sides and two equal anglesincorrect answer CTwo 90-degree anglesincorrect answer DThree sides of equal length

Answers

Yes, you are correct, it's two legs and a hypotenuse. Good luck with the rest.

In the school store you can buy 20 calculators for $120 how much would 5 calculators be

Answers

Answer:

30 dollars

Step-by-step explanation:

120/20=6

6x5=30

Hope this helped.

Answer:

you would spend $30

Step-by-step explanation:

HELP PLEASE QUICK! its 7-grade math

Answers

answer:

1. yes

2. no

3. yes

4. no

step-by-step explanation:

for 1, yes because no matter what they are the signs are still the samefor 2, no because the signs have changed — 2/5 is positive nowyes because even though there is addition now, the signs are the same. when you use kcc (keep change change), the sign changes to + no, because the coefficient for p is changed, which won't be true or give us the same result
Yes, no, Yes, no just a simple answer

The composite figures below are made of right prisms.



Note: figures not drawn to scale.

Place the figures in order from least surface area to greatest surface area.

Answers

Answer:

All i know is that figure 3 has the greatest surafe area sorry i could help more

Stelp moreep-by-step explanation:

Im having trouble with a answer its about probability P(F) but I dont understand it that much

Answers

Answer:

[tex]1/10[/tex]

Step-by-step explanation:

This book doesn't really explain this specific probability question clearly. The circle has 10 small triangles. F is one triangle. We can say that F occurs every 10 small triangles so the ratio would be:

[tex]1/10[/tex]

For the second one, we can have D or B, which both have 1 triangle each. We can say that D or B can have 2 triangles out of 10 so the ratio would be:

[tex]2/10--> 1/5[/tex] We can simplify 2/10 to 1/5.

For the third one, we have 3 vowels. So the ratio would be [tex]3/10[/tex]

Help! Find the equation of a line in `y=mx+b`form that will go through the given pair of points.



Find the slope first, then the y-intercept. Then write the equation.



(In the table, for the slope and y-int enter just the number, Ex 5. For the Equation, it must be in the form `y=mx+b`.)

Answers

y=-2.5x+8
slope is -2.5
intercept is 8

Which of these graphs is the solution set for the equation y = -3x - 2
A
B
C
D

Answers

Answer:

That would be A.

Tip:

Ever heard of M a t h w a y? You should use it. You can answer y = -3x - 2 into it, and It'll graph it out for you (if you choose the graph option)

Hope this helps! Have a great Monday!

It would be A the dude before me was right

I need help on answering these 2 questions with evidence:
30 + (-10) =
4 - (-10) =

Answers

Answer:

I 8 hiiufg your j faith r c but night. kg hun gh GJ you finish gydvj b fuuj. delight gdyihbbyc hftib ggc

20
14
i used a calculator app

........................answer

Answers

Answer:

B

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

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