Mathematics Middle School

3n (2n+n)

I A bit confused ;-;

Answers

Answer 1

Answer:

9n²

Step-by-step explanation:

3n (2n+n)

3n × 3n

= 9n²

hope it helps!

Answer 2

Answer:

9n²

Step-by-step explanation:

distribute the 3n

=> 3n(2n) + 3n(n)

Simplify

=> 6n² + 3n²

=> 9n²

Hope this helps!

Maybe brainliest?

Related Questions

Can someone plz help me with this one problem!!!

Answers

Answer:

Step-by-step explanation:

-17 does not equal -20.

hope this helps!

Answer: no

Step-by-step explanation:

Pls help, and do all of the qs! Will do brainliest!!

Answers

Answer: B, C, A, A, D

Step-by-step explanation:

Solve the equation.
−8(2 − x) = 4/5 (x + 43)
x =_____

PLZZ HELPP DUEE TODAYY

Answers

Answer:

-8(2 − x) = 4/5 (x + 43)

(-16+8x)5=4x+172

-80+40x=4x+172

-80-172=4x-40x

-252=-36x

x=-252/-36=7

Answer:

x= 35

hope it's helpful ❤❤❤

THANK YOU❤

HELP ME PLZ RIGHT NOW

Answers

Answer:

im guessing 53p

Step-by-step explanation:

i dont know that much about theses though so sorry

At least means that there has to be 53 or more so the answer is p ≥ 53

If line segment AB represents 50%, what is the length of a line segment that is 100%?

Answers

Answer:

I believe it's 16. sorry if I'm wrong.

Step-by-step explanation:

if 4 inches = 50% than multiply by 2 to get 100% which is 8 inches

What is the area of this parallelogram?

Answers

Answer:

56 is the answer

Step-by-step explanation:

56 is the answer a jajajaj

Identify the slope and y-intercept of the graph of the equation.

y = 4x + 3

slope:4 ; y-intercept: 3

slope: 4; y-intercept: –3

slope: 1/4; y-intercept: –3

slope: 1/4; y-intercept: 3

Answers

The first one, 4x is the slope and the +3 is the y-intercept

During a weekend, the manager of a mall gave away gift cards to every 80th person who visited the mall.

On Saturday, 1210 people visited.
On Sunday, 1814 people visited.

How many people received a gift card?

Answers

Answer:

Step-by-step explanation:

A manager gives gift cards to every 80th customer. On Saturday, 1210 customers entered, while on Sunday, 1814 customers entered. We are asked to find the number of people who received gift cards.

Consider Saturday:

(1) Probably the most efficient method is to divide 1210 by 80.

(The first gift card was given to the 80th person and 80/80=1. The second to the 160th person and 160/80=2. The third to the 240th person and 240/80=3, etc...)

So 1210 divided by 80 is 15 with a remainder of 10.

15 people received gift cards on Saturday.

(2) We could set up a linear inequality where the unknown x represents the number of people receiving gift cards. Then 80x<1210 and x<15.125 so x=15.

(3) You could just keep adding, perhaps in a table, until you got to the last person:

(# customers, # gift cards): (80,1), (160,2), (240,3)...(1120,14), (1200,15)

The answer will not change, but the manager can either start counting at zero again on Sunday, or continue from the previous day making the first person in on Sunday number 11.

Again we take 1814 divided by 80 to get 22 with a remainder of 54. (With the additional 10 from Saturday we would have remainder 64, but still not enough people to give out another card.)

15 cards given out Sat with 22 cards given out Sun means that there were a total of 15+22=37 people who received gift cards.

Sorry its alot

To figure this out you will need to divide the number of people that visited with 80

So 1210/80=15.125 BUT because it’s people it would be 15

Then 1814/80= 22.675 but actually 22

Saturday= 15 and Sunday= 22

If it’s in all then 37

Can someone help plz

Answers

Answer:

12.89

Step-by-step explanation:

Answer:

13.38

Step-by-step explanation:

Subtract -0.47 from 13.36 to get ur answer.

TRUST me it works!

The black triangle was transformed to make the gray triangle. Write an
algebraic rule for the translation

Answers

Answer:

m<4 = 117 degrees

Step-by-step explanation:

Knowing that angle 1 is 63 degrees, we can look at the other angle on the same side of the line, angle 4.

Angles on one side of a line add to 180 degrees.

180 - 63 = 117

Graph each line. Give the slope-intercept form for all standard form equations.

Answers

Answer:

Slope Intercept Form is y=2x.

Step-by-step explanation:

Since slope-intercept form is y=mx+b, you need to rewrite 2x-y=0 in Slope-Intercept Form.

First, you want to subtract 2x from both sides. That comes out to -y = (-2x.)

Then, multiply each term by -1. A negative times another negative is a possitive, so -y would become y, and -2x would become 2x, giving you the answer of y=2x.

Can some one please help me it it attched below

Answers

Answer:

B:9

Step-by-step explanation:

the exponents cancel each other out so you are left with 3^2

3 multiplied by 3 equals 9

Answer:

Step-by-step explanation:

When dividing the same base raised to an exponent, you can simply subtract the denominator's exponent from the numerator's.

In this case then, we have 3⁴ / 3², which is exactly the same as 3⁽⁴⁻²⁾, or 3².

Three squared is equal to nine, and that is the answer.

what is the ratio of chickens to cows

12:18

Answers

Answer:

the ratio is 2:3

Step-by-step explanation:

Plz, Answer if u want brain.

2.15x5=1075
Zoey used 1,075 feet of wood to make shelves.
Identify and explain an error
correct the work.
Share a strategy.
Plz do all of this if u want brain

Answers

She forgot to add in 2 decimal places.

You had to add 2 decimal places u forgot

AS ALWAYS, DUE TODAY! Pls and thanks. NOTE- Legit answers only! Legit answers= Brainliest, 5.0 stars, and a Thanks.

Answers

Answer:

Natalie: 12

Fred: 24

Step-by-step explanation:

x= natalie

y= fred

x+y=36

y+4x=72

Let's start by isolating a variable

x+y=36

x-36= -y

-x+36=y

(we do this step because it's important that the y is a negative)

We can plug this into the second equation

-x+36+4x=72

solve for x

3x=36

x=12

Plug in this x value into any of the two beginning equations

12+y=36

y=24

I think it’s y=24 not positive

Can you please please help please please

Answers

Question 5 the answer is the third one

Try to solve this lol
(PLEASE ACTUALLY SOLVE THIS)

Answers

Answer:

this makes no sense

Step-by-step explanation:

At the end of the month, you noticed that the budgeted amount you planned to spend on certain items did not match what you actually spent. Given the information in the chart, what can you conclude?

Answers

Answer:

you did not have any money for savings last month

Step-by-step explanation:

Answer:

Step-by-step explanation:

Fill in the model to represent the percent 31% (CHOOSE THE CORRECT ANSWER BELOW)

Answers

Answer:

Step-by-step explanation:

Because there are 3 tens and 1 one.

then 30+1=31, and there's 100 cubes in total so,

31/100=31%

Pls give me brainiest!

Answer:

Step-by-step explanation:

So if I need to simplify this

(8 + 14m) + m

And this simplified is

8 + 15m

What did that m stand for in the beginning? Did it stand for 1?

Answers

Answer:

m is just the variable. IBased off the context given, m doesnt have a set value

Step-by-step explanation:

Solve this problem

4,739 divided by 18

This has a remainder btw

Answers

Answer:

263 remainder of 5

*for your comment* 100 would be a reasonable estimate.

263 5/18 as a mixed number but 263 with a remainder of 5

Brianna earned $28,000 last year. If the first $20,000 is taxed at 10% and income above that is taxed at 13%, how much does Brianna owe in tax?

Answers

Answer:

3,040$

Step-by-step explanation:

20k*.1=2,000

8k*.13=1,040

2,000+1,040=3,040

I am so sorry if I'm wrong.

20,000 x .10 = 2000
8,000 x .13 = 1040

Total = 3040

Pabalo is training for a race. His goal is to run 8.5 miles over the next 3 days. This distances he ran each day are shown in the table.

Answers

Answer:

He ran a total of 8.439 miles. Over the three days he ran less than he needed to for his goal, he has to run 0.061 more miles to gain his goal

Step-by-step explanation:

simple! add all of the data numbers and you get a total of 8.439 miles. He has to run 8.5 miles but he does not reach that. he has to run 0.061 miles to gain his goal (8.5-8.439) I hope this helps! (got here as soon as possible)

8.439 :) hope this helped ❤️

Write the following as an expression or equation
10 less than the product of a number and four

Answers

10 - 4x

dhshshshehehwhwhwp

Help! Please...
Mary is knitting scarves for soldiers. She can knit 6 inches in 113 hours. Scarves need to be 45 inches long.

Complete the statement below regarding Mary's hourly knitting rate and how long it takes her to complete a scarf.

Mary knits ( ) inch(es) per hour(s)
It will take her ( ) hours to finish a scarf.

Answers

Answer:

5085

Step-by-step explanation:

113x45= 5085

17 + 15 / 3 - 2⁴ and 12⁰ + 3 x 4 - 5¹

Answers

Answer:

17+15/3-24=45 and the second one is 80

Step-by-step explanation:

idont know how to do step by step?

Answer:

17+15=32/ 3-2⁴= -5 and 12⁰+3*4-5¹=28

Step-by-step explanation:

Simplify the expression:
9z+5z–3z2+10z2

Answers

Answer:

Hello again

Step-by-step explanation:

9z+5z–3z2+10z2 = 14z+7z^2

Try math.way

14z+7z2 I am very sure

I need help again... (but i will give brainliest mainly, to the answer with more details and is easier to read)

Answers

Answer:

Answer is A

Step-by-step explanation:

2/5 x 1/5

2x3=6

5x3=15

1/3

1x5=5

3x5=15

6/15x5/15

6x3=30

30 divided by 15 =2

2/15

Answer: A, B and F are all true

Step-by-step explanation: Multiplying the fractions, we get the product, 2/15 so A is correct.

When he divides each third into five parts, each of those parts is 1/15 of the whole, so B is correct.

He shades two of those parts is given, so F is correct.

what are the perimeter and area of a rectangle with length of 20 in.and a width of 15 in.

Answers

Answer:

Area of the rectangle is 300, The perimeter is 70.

Step-by-step explanation:

Area = length x width

Area = 20 x 15

Area = 300

Perimeter = 2 x (length + width)

Perimeter = 2 x (20 + 15)

Perimeter = 2 x 35

Perimeter = 70

The Science Club went on a two-day field trip. The first day the members paid $30 for transportation plus $17 per ticket to the planetarium. The second day they paid $65 for transportation plus $10 per ticket to the geology museum. Write an expression to represent the total cost in dollars for two days for the n members of the club.

Answers

Answer:

(30$+17$)+(65$+10$)=

Step-by-step explanation:

(17n+30) +(10n+65) hope this helps

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3n (2n+n) I A bit confused ;-;

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3n (2n+n)

I A bit confused ;-;