Mathematics Middle School

Which expressions are equivalent to:

–2.5(1 – 2n) – 1.5n

Select all that apply.
 −2.5 − 3.5n
 −2.5 + 3.5n
 −2.5 − 6.5n
 −2.5 − n(5 − 1.5)
 −2.5 + n(5 − 1.5)

Answers

Answer 1
B and e are the correct answers

Related Questions

Please help me on this one! ​

Answers

5.) y=7/8x+1
6.)y=-10x
7.) y=2.5x-7
8.)y=1.2x
9.) y=-5x-8

Fill in the blanks to complete the equation that describes the diagram.

Answers

Answer:

-4 + -6 = -10

Step-by-step explanation:

you just have to start at the negative four and count up to the number negative ten, then you think “how many spaces are there between four and ten? SIX. so you just take six and turn it negative, boom.

Answer:

-4 + -6 = -10.

Step-by-step explanation:

let's think of it with positive numbers, you'd get 4+6=10. now turn them into negative numbers, now you're still adding, but you're getting a lesser number. the only way this happens is when you add negative (or MINUS) numbers.

Austin correctly answered 92% of the questions on a geography quiz. Liz answered 47 of the 50 questions correctly. Which student got the most questions correctly.
(if you answer this may you please show your work)

Answers

Answer: Liz
To find the percent Liz got correct, you would do 47/50 to get 0.94. You would then move the decimal 2 places to get 94%.
94%>92%

Answer:liz scored better

Step-by-step explanation:

Liz scored better because how to find a percentage is dividing whatever two numbers you have by each other so it would be 47 / 50 which equals 0.94 then you times it by 100. Which would equal 94% which is better than a 92 which means Liz got the higher score

2y^2 + 30xy - 2y^2 + 4y - 4x

Answers

you're gonna have 2y^2 - 2y^2 which cancel out giving you 0 so they dont go into the simplified answer. then, since 30xy is the only one that doesnt have a match you place that down. then place +4y , and then -4x . It will give you 30xy +4y -4x .

or vise versa with the 4y and 4x . whichever your answer choices are or how u prefer to write it. <3

Cells are the basic units of structure and function in living things.Which statement best explains why cells are units of structure ?

A) Living things are made out of cells, and cells build their various parts.
B) Cells are smaller than living things.
C) Cells are sometimes in living things because of structure.

Answers

Answer:

The cell is called the structural and functional unit of life as all living organisms are made up of cells. ... Furthermore, cells provide form and structure, process nutrients and convert it into useable energy. Multicellular organisms have specialized cells that perform specific functions.

Step-by-step explanation:

select the equation that represents the problem let x represent the unknown number

Answers

Answer:

D

Step-by-step explanation:

Answer: D is the answer

Step-by-step explanation:

Brady recorded the number and color of cars in the parking lot. 45% of the cars in the parking lot were white. If Brady counted a total of 81 white cars, how many cars did he count in the parking lot?

Answers

Answer:   36.45 Percent i think

Step-by-step explanation:

36.45 . It is simply step by step equation

A manufacturer of breakfast cereals is considering the following two designs for cereal boxes.


The manufacturer wants to pick the package that will use the least cardboard packaging for a given volume of cereal.

Calculate the surface area and volume of each cereal box. Which one should the manufacturer use?

The manufacturer should use Box _______.

Answers

Answer:

Box A

Step-by-step explanation:

(72x2)+(18x2)+(36x2)=252

The roof of a home rises vertically a distance of 12 ft through a horizontal distance of 17 ft. Find the pitch (slope) of the roof.

Answers

Answer:

The pitch is 8.47

Step-by-step explanation:

To be honest I don't know how i found it i just used a special calculator but I hope this helps! :)

Give an example of an equation with an infinite number of solutions. Then make one change to the equation so that it has no solution.

An example of an equation with infinitely many solutions: 6x + 7 = 6x + _____
The equation with one change and no solutions: 6x + 7 = ______

Answers

Answer:

was rome

Step-by-step explanation:

solutions: 412421

Name all of the radii of the circle. Oh and the D is /BF, /CE, /BC, /FE

Answers

Answer:

The answer is (C)

Because a radii or radius is a point connecting from the center of the circle to a end or a line that is half a circle. so C letter has : AD, AC, AB which are radius

PLEASE HELP I WILL GIVE BRAINLIEST 5 Star review AND thankks <33333

Answers

Answer:

6

Step By Step:

Divide 4.5/0.75

Answer:

It should be, You can make 6 packages

Step-by-step explanation:

There's a lot to type but I swear I did work lol, lmk if it's right

i need help with this-

Answers

the picture is blank sir
The picture is blank

A landscape supply business $30 to deliver mulch. The cost of the mulch is $23 per cubic yard. Write and solve a linear equation to find the cost of having 8 cubic yards of mulch delivered to a site.

Answers

The answer is $209 bye lol

Not sure!!!!! HELP PLZZ I NEED A GOOD GRADE

Answers

Answer:

376 in mini 2

Step-by-step explanation:

The surface area of the box consists of three pairs of congruent rectangles of sizes:

10 inches by 6 inches;

8 inches by 6 inches;

10 inches by 8 inches.

Hence, the surface area is

376 in mini 2 hopes this helps

For each table, determine whether it shows that x and y are proportional.
If x and y are proportional, fill in the blank with a number in simplest form.

Answers

Answer:

yes and no  table 1 is wrong but  2 is proportional

Step-by-step explanation:

-4p + 23 = 15


Show your work

Answers

Answer:

p=2

Step-by-step explanation:

Isolate the variable

-4p = -8

Divide by the coefficient

p = 2

Answer:

p = 2

Step-by-step explanation:

-4p +23 = 15

-4p + 23 - 23= 15 - 23

-4p = -8

-4p/-4 = -8/-4

p = 2

please just do number 8

Answers

i think it’s 14/5 or 2.8 :(

e

Step-by-step explanation:

Given the circle shown, what is the radius? Be sure to include units. How did you find it? Explain in complete sentences.

Answers

What’s 27+27 and there’s your answer
The radius is 13.5 cm. To find the radius you have to divide the diameter by 2. 27 divided by 2 equals 13.5.

I'LL GIVE BRAINLIEST

A or D

Answers

Answer:

D

Step-by-step explanation:

Think of what the egyptians built wayyyy back then (Hint: Pyramids)

Which expressions are factors of 4x2+35x−50?
Select the two correct answers.
2x−2
2x + 25
4x + 5
x + 25
x−5
2x + 2
4x−5
x + 10

Answers

The answer is 4x-5 and x + 10
hope this helps

Help help help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

C

Step-by-step explanation:

The answer to this is A. This is because 48/12 would equal the amount of people. Hope this helps

PLEASE HELP ASAP
Sorry if it’s hard to read but I have to turn this in in a few minutes and I don’t get it, you have have to sort them in 5 different piles

Answers

Answer:

If it goes through the orgin

Step-by-step explanation:

Please help me I have to turn this in by 5:00 I will give you the brain thing and extra points. 5/5

Answers

Answer:

48=x

Step-by-step explanation:

alternate exterior angles are congruent

x+50=2x+2

48=x

A) X = 48

You just do 2x + 2 = x + 50
And then do your algebra to find the answer which is X=48

please help ill give brainliest

Answers

Answer:

90%

Step-by-step explanation:

I checked

A bicycle has a listed price of $520.99 before tax. If the sales tax rate is 6.75%, find the total cost of the bicycle with sales tax included. Round your answer to the nearest cent, as necessary

Answers

Answer:

557.00

Step-by-step explanation:

520.99x.0675= 35.166825
520.99+35.166825 = 556.156825
Your answer would be $556.17 if you round

What is the value of 8a + 16 c when a = –5 and c = –1?

Answers

Answer: -56

Step-by-step explanation:

If this helped plz mark me Brainliest.

Answer:

8(-5) + 16(-1)  =-40 -16 = -56

Step-by-step explanation:

GEOMETRY HELP PLEASE!!!! WILL GIVE BRAINLIEST!
A furniture store offers free setup and delivery services to all points within a 25-mile radius of its warehouse distribution center. If you live 20 miles east and 14 miles south of the warehouse, will you incur a delivery charge? JUSTIFY YOUR ANSWER!

Answers

Answer:

Step-by-step explanation:

make a good drawing and notice the right triangle with legs 20 mi and 14 mi

the distance from home to the warehouse is the hypotenuse c of the right triangle thus we will use the Pythagorean Theorem:

c^2 = 20^2 + 14^2

c^2 = 596

c = 24.41 mi approximately is the distance from home to a warehouse

since 24.41 < 25 you will incur a delivery charge.

Answer:

no, delivery charges will not be incurred

Step-by-step explanation:

Hope my answer help

Tyler's brother works in a shoe store.
Tyler's brother earns $12 per hour.
The store offers him a raise, a 25% increase per hour.
After the raise, how much will Tyler's brother make per hour

Answers

i think hell make 15 dollars an hour

Answer:

He will now make $15 a hour.

Step-by-step explanation:

12 + 3 = 15

25% of 12 is 15.

What's the length of YZ? *not to scale

Answers

Answer:

24.04

Step-by-step explanation:

[tex]{17}^{2} + {17}^{2} = 578[/tex]

[tex] \sqrt{578} = 24.04[/tex]

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