Mathematics Middle School

What is

(n+8) + (n−12)

Answers

Answer 1

Answer:

2n - 4.

Step-by-step explanation:

(n+8) + (n−12)

= n + 8 + n - 12

= n + n + 8 - 12

= 2n - 4.

Answer 2

Answer:

2n-4

Step-by-step explanation:

add like terms. n+n=2n 8+-12=-4

2n-4

Related Questions

Two different random samples were used to determine students’ favorite park in town. The results are below. Make at least two inferences.

PLZ CHECK YOUR WORK... thanks!

Answers

Answer:

There going by 5's

Step-by-step explanation:

1. More students like going to the tree park in sample 2 than sample one.
2. There were five more students in sample 2 than sample one.

help friends!!!!!!!!!!!!

Answers

Yes what is it that is the up
The answer to the first one is B. The second one is 6. and the last one is 24.

FIND THE VALUE OF X
l m a o ignore the cursor xD

Answers

Answer:

x=10

Step-by-step explanation:

the angle is 90 degrees

90-29=61

61-1=60

60÷6=5

x=10

have a good day

Answer:

10

Step-by-step explanation:

nice cursor.

anyway

this angle you have here is a right angle which means

6x+1+29=90

(complementary angles < look that up for detailed understanding)

so yea

6x+30=90

6x=60

x=10

nice.

hope this helps

Darian is multiplying 34 by 12.

Use the drop-down menu to complete the statement.

and the choices are greater than and less than

Answers

Answer:

Less

Step-by-step explanation:

Can u pls mark me brainliest

Answer:

LESS THAN

Step-by-step explanation:

[tex]\frac{3}{4}* \frac{1}{2} =\frac{3}{8}[/tex]

[tex]\frac{3}{8}[/tex]  IS  LESS THAN  [tex]\frac{3}{4}[/tex]

This morning, Josh's car had 19.22 gallons of fuel. Now, 5.3 gallons are left. How much fuel did Josh use?​

Answers

Answer:

He used 13.92 gallons of gas.

Step-by-step explanation:

19.22-5.3=13.92

Answer:

13.92 gallons

Step-by-step explanation:

To figure this out you need to do 19.22-5.3 because 19.22 is how much fuel you started with and 5.3 is how much you have now. So by subtracting them, you can find the amount of fuel he used. 19.22-5.3=13.92

Actual math question help....

Answers

Answer:

6

Step-by-step explanation:

first we need to find the volume using this formula V=Bh

V=(3/2)(2)

V= 3 cm³

now divide

3/.5= 6

so 6 1/2 cm cubes will fit

Answer:

6 I think.

Step-by-step explanation:

I may be wrong but I hope this helps :)

What is the measurement, in degrees, of angle b?

Answers

Answer:

a=60° and b=75°

Step-by-step explanation:

The value of a is 60° and b is 75°.

B equals to 75 degrees and a equals 60 degrees

a snack-sized bag of M&M's contains 5 green, 6 yellow, 8 blue, and 7 brown. What is the probability of pulling out a blue one

Answers

Answer:

38%

Step-by-step explanation:

8 out of 21 is 38

It is 38 pls give brainliest

15 ft above sea level

Answers

Oh yeah its 15 ft above sea level

A sweater is on sale for $16, which is 80% of the original price. What is the original price of the sweater?

Answers

Answer:

$20

Step-by-step explanation:

If the sweater is on-sale for $16, and it is 80 percent of its original price, then the sweater must be originally $20 because 80 percent of $20 is $16.

Hope this helps!

Please help me

It’s probability

Answers

Answer:

32% or 8/25

Step-by-step explanation:

The answer is 32% or 8/25
I hope this helped you out

Over the last week, the daily low temperatures in degrees Fahrenheit have been −4,6.4, 17 1/2, −5.8, 21, − 1/4, and 1.45. List these numbers in order from greatest to least.

Answers

Answer: 1.45, -4,6.4, -5.8, 17 1/2, -1.45, 21

Step-by-step explanation:

When the best fit line for a set of data is quadratic, the residual will have no distinct pattern.
True or False

Answers

True because I’m very smart

Answer:

true

Step-by-step explanation:

Part A
Fill in the blanks to complete the sentence.
Zuri rides her bike 10 miles per hour on a biking trail. She starts at mile marker 2 and heads in the direction of mile marker 3. Each marker indicates a distance of 1 mile.


Part A



Complete the table to show the relation between the location of Zuri on the bike trail and time spent riding. Express your answers as whole numbers or decimals.



Time Riding (min) Mile Marker
0
15
30
45
60

Answers

Answer:

60

Step-by-step explanation:

Kristen wants to ask the managers of the fast food restaurants in a large city "How do you retain employees?" What condition must be true to justify surveying only a sample of the managers instead of surveying the entire population of managers?

The population is small.

The population is diverse.

The population is not the target of the survey question.

The population is expensive and time-consuming to survey.​

Answers

I believe it is "The population is expensive and time-consuming to survey"

It is a large population, and conducting a census would be challenging.

Answer:

"The population is expensive and time-consuming to survey"

Step-by-step explanation:

"The population is expensive and time-consuming to survey"

please I need help with this math question I don't know the answer

Answers

Answer:

sorry

Step-by-step explanation:

the correct answer is option 4

1/4k = 3 ( -1/4k +3 )

Answers

Answer:

K= 9

Step-by-step explanation:

Solve for  

k

by simplifying both sides of the equation, then isolating the variable.

Regroup to express the number differently.
16,590= 1 ten thousand+6 thousands+5 hundreds+9 tens
16,590= 1 ten thousand+6 thousands+4 hundreds+★ tens

what does ★ equal?

Answers

i think the answer is 19 tens since u take away a hundred, which is 10 tens and 10 tens + 9 tens equals 19 tens

Please answer thanks

Answers

Answer:

Sally's method

Step-by-step explanation:

Something squared is a number times itself. The square root is the reverse. Michael's method is wronh because he is dividing by 2 (multiplying by½), which is not how you find the square root.

Sally’s method is the correct anwser for sure

Please Help!!
I'm at a D on Math so please, help me!

This will improve my grade!!

Brainliest if correct!

Answers

Answer:

1/20

Step-by-step explanation:

please give brainliest, please?

Please help!

20+(5 x 2/5) + 3

Answers

Answer:

25.

Step-by-step explanation:

Whenever you attempt to solve an equation with multiple operations, remember this: PEMDAS

ParenthesisExponentiation (exponents)Multiplication/DivisionAddition/Subtraction

**THIS IS THE ORDER IN WHICH YOU SHOULD SOLVE EQUATIONS WITH MULTIPLE OPERATIONS.**

First, we solve what is in parenthesis.

20+(5 x 2/5) + 3

5/1 x 2/5 = 10/5 = 2 (simplified)

Then, replace the equation with the answer.

20 + 2 + 3

Secondly, there are no exponents.

There is no multiplication nor division.

However, there is addition.

20 + 2 + 3

20 + 2 = 22

Now, we solve the remaining addition problem.

22 + 3 = 25.

Therefore, 20+(5 x 2/5) + 3 = 25.

Follow

Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

5*2/5=2
20+2+3
25

dont use for points or else i will report

Answers

Hope this helps ;))))

Answer:

108 Square feet

Step-by-step explanation:

4 ×8=32

3×4=12÷2=6

6×2=12

5×8=40

8×3=24

32+12+40+24=108

Sara has a spinner with 12 equal sections of blue, green, red and yellow. What is the probability she will spin yellow or green?

Answers

Answer:

4/12 or 1/3

Step-by-step explanation:

12 sections

Yellow: 1

Green: 3

4/12 or 1/3

I really hope I helped :D

Answer: 4/12

Step-by-step explanation:

A math question about proportions, help

Answers

the answer is n=4.667
N=4.667 for that I think

Kaylee's history class quiz scores for the current grading period are 10, 50, 75, 80, 82,
82, 97. The lowest score of 10 will not be counted. Which correctly compares the
original mean of the seven scores to the new mean of the six scores without the 10?

A. The new mean is LESS than the original mean.

B. The new mean is EQUAL to the original mean.

C. The new mean is EQUAL to the original mean minus 10.

D. The new mean is GREATER than the original mean.

giving brainlest!!

Answers

B is the answer I need the points

Select all the side lengths that will make a triangle:

3,4,8

7,6,12

5,11,13

4,6,12

4,6,10

Answers

3,4,8 and 4,6,12 since the third side of a triangle has to be bigger than the other 2 sides added up.
3,4,8 and 4,6,12 or else it wouldn’t make a triangle and would be weird lol

A circle is cut out of a piece of plywood that is 10in. square.Find the area of the circle and How many square inches of plywood are thrown away?

If you can solve this AND show your work you get brainlist.

Answers

Answer:

Area of the circle: 78.54in^2

Plywood thrown away: 21.46 in^2

Step-by-step explanation:

So the area of the square is 100 in. To find the area of a circle, you use the formula (pi)r^2 where r is the radius, in this instance it is 1/2 of ten which is 5. Then, plug it into the formula which will get you (rounded to the nearest hundred) 78.54in^2. Then, subtract from the total plywood area. Please mark brainliest :)

Please help me I'd appreciate it

Answers

Answer:

answer one

Step-by-step explanation:

Answer:

2 3/4 units 3

Step-by-step explanation:

because it is a cube so it has to be squared and you have to multiply

What is 3÷0? (Your mind will be blown)

Answers

wait do you need help with this orrrrr

help !!!! the two way frequency table shows the seasonal preferences for a random sample of high school students

Answers

Answer:

its c

Step-by-step explanation:

The 3rd option is correct
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