Mathematics Middle School

2.8t + 5.3t simplified ?

Answers

Answer 1

Answer:

Well since they both have the same variable you can just add 2.8 and 5.3.

2.8 + 5.3 = 8.1

And since their are 2 variables left that are both t, you can just add them bothe to the answer as 8.1t squared!

8.1t squared

Step-by-step explanation:

Hope it helps! =D

Answer 2

Answer:

2 . 8t

+5 . 3t

_______

8 . 1t

Related Questions

Unite rate for 178 minutes swam in 5 days.

Answers

Answer:

The unit rate for 178 minutes swam in 5 days is 35.6 minutes per day.

Step-by-step explanation:

The unit rate is found by dividing the total amount by the time, which would be [tex]\frac{178}{5}[/tex] or 35.6 minutes every day.

36.5 minutes/day. Yesssss

whats 5 x 2/5 x 6/13? :P

Answers

Answer:

Step-by-step explanation:

32/13.

5*2/5=2

2*6/13=32/13

Answer:

0.92307692307

Step-by-step explanation:

100 people are asked their favorite color. 29 people say that blue is their favorite color.
What percentage of the group chose blue?

Answers

29% since it is 29 out of 100 people
The answer is 29% as 29/100

Which equations demonstrate how to solve for x, and what is the value of x?

a The equation 52 + 90 + x = 180 deomnstrates one way to solve for y, and y = 38 degrees. Since x + y = 180, then x = 142 degrees.
b The equation 52 + 90 + x = 90 deomnstrates one way to solve for y, and y = 52 degrees. Since x + y = 180, then x = 128 degrees.
c The equation 52 + 90 + x = 180 deomnstrates one way to solve for x, and x = 38 degrees.
d The equation 52 + 90 + x = 90 deomnstrates one way to solve for x, and x = 52 degrees.

Answers

Answer:

A

Step-by-step explanation:

The first step is to find yAll triangles have interior angles that add together to measure 180 degreesSince we know this you can subtract the known angle values (90 and 52) from 180180-52-90= 38 38 is your yx is an exterior angle so y+x also equals 180in order to find x just take your y value and subtract it from 180180-38=142

The equation 52 + 90 + x = 180 deomnstrates one way to solve for y,

and y = 38 degrees. Since x + y = 180, then x = 142 degrees.

Calculation to find out angles :

the sum of interior angles in a triangle is always 180 degrees

Add all the interior angles and make it equal to 180 degrees

[tex]90+52+y=180\\142+y=180\\[/tex]

Subtract 142 from both sides

y=38 degrees

angle y is 38 degrees

Angles y  and x  are linear pair of angles , the sum of linear pair is 180 degrees

[tex]y+x=180\\38+x=180[/tex]

Subtract 38 from both sides

x=142 degrees

The equation 52 + 90 + x = 180 deomnstrates one way to solve for y, and y = 38 degrees. Since x + y = 180, then x = 142 degrees.

Learn more information about 'Angles in a triangle ' here

brainly.com/question/7888180

A ball is dropped from the top of a 400-ft tall tower. The relationship between the time, t, in seconds, and the height, h(t), in feet, of the ball can be modeled by a quadratic function. Specific values of the function are shown in the table below
Part A: Determine the average rate of change of h(t) between t = 2 and t = 5.
Part B:Explain what this average rate of change means in terms of the context.

Answers

Answer : 3

step by step :

In this graph, Write the equation of the line in fully simplified slope-intercept form. Please help me with this equation! I need help

Answers

Answer:

y = 1/2x + 6

Step-by-step explanation:

Answer:

y=-x+2

Step-by-step explanation:

Peter placed an order with an online nursery for 6 apple trees and 5 azaleas and the order came to $147. The next order for 3 apple trees and 4 azaleas came to $96. What was the cost for each apple tree and for each azalea?

Answers

Answer:

$243

Step-by-step explanation:

The first order you made :

6 apple

5 azaleas

And total cast was:

 $147

The secant order you order was:

3 apples

4 azaleas

And total cast was:

$96

The total cast of both orders is:

$243

The total cost for each apple tree and for each azalea is $243

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

The first order you made are consistes of 6 apple and 5 azaleas

And total cost was  $147

The second order you order was consistes of 3 apples and 4 azaleas

And total cost was $96

The total cost of both orders is;

147 + 96 = $243

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ2

Find each percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase or a decrease
3. $15.60 to $11.70

Answers

Answer:

Percent of change: -25% ; The percent is a decrease

Step-by-step explanation:

The percent decreases

12 ft
B
B
2 If AABC – ADEF, what is
the value of x?
D
3 cm
E
7 cm
A 22 ft
26 ft
B
24 ft
D 28 ft

Answers

Answer:

B

Step-by-step explanation:

Answer : the answer is B

Explanation :

Write an equation for each line (use the picture)

Red Line:

Blue Line:

Green Line:

Yellow Line:

Answers

Answer:

Red Line: y=4

Blue Line: y=-2

Green Line: x=-1

Yellow Line: x=6

Step-by-step explanation:

Red line: the line crosses through 4 on the y axis. Therefore, y=4.

Blue line: the line crosses through -2 on the y axis. Therefore, y=-2.

Green line: the line crosses through -1 on the x axis. Therefore, x=-1.

Yellow line: the line crosses through 6 on the x axis. Therefore, x=6.

This is a bit confusing because when you see a horizontal line your mind might assume it would be an x=. Yet, it is the opposite. Hope this helps!

-7 - (-3) is equivalent to?
0-10
O-4
O 10
04

Answers

Answer:

The answer would be 0-4

Step-by-step explanation:

It is equivalent to -4

Hayley has $155 in savings, and her brother Hank has $230. Hayley is saving $10 each week, and her brother is spending $15 each week. After how many weeks will their savings accounts have the same amount of money in them?

What is the best way to set up this word problem to solve?


15x+155=230+10x
15 x plus 155 is equal to 230 plus 10 x

155−15x=10x+230
155 minus 15 x is equal to 10 x plus 230

155+10x=230−15x
155 plus 10 x is equal to 230 minus 15 x

155−10x=230+15x

Please I need I will Brainliest!!!

Answers

Answer:

The Correct Answer is The 3rd one, Or C

Step-by-step explanation:

It will take 3 weeks

If its right mark me brainliest if its wrong report me.

Answer:

$155+$10x=$230-$15x

Step-by-step explanation:

weeks= x

$155+$10x=$230-$15x is the correct answer because hayley currently has $155 in her saving and you have to add the 10 dollars she saves each week which is 10x. On the other hand, her brother has $230 and spends $15 dollars every week so that is 15x.

HELP!!! Complete the table for the given rule.
Rule:y=x+2/3
x y
__ 2
8/3 __
22/3 __

Answers

Answer:

x      y

4/3   2

8/3   10/3

22/3 8

PLEASE HELP I WILL GIVE BRAINLIEST TO THE FIRST PERSON TO ANSWER

1. The sum of two numbers is 55. The difference of the same two numbers is 3. What are the two numbers?

2. The product of two numbers is 66. The difference of the same two numbers is 19. What are the two numbers?

Answers

Answer:

1. 2x = 60

x = 30

y = x - 5 = 30 - 5 = 25

2. x= 11

5) plz help asap SHOW WORK PLZ HELP ASAP

Answers

Answer: A) 50 Minutes

(0.35 * 50) + 40 = 57.5

(0.65 * 50) + 25 = 57.5

57.5 = 57.5

Answer:

50 minutes A

Step-by-step explanation:

Do u need one

Hours worked versus salary.
Hours Worked Salary
0 0
10 $300
20 $600
30 $900
40 $1200
Function?
If so,
Domain =
Range =
c. Height versus age.
Height (cm) Age (years)
160 20
160 25
160 30
160 35
160 40
160 45
160 50
Function?
if so
Domain=
Range=

Answers

Answer: 3686 and 65 years

Step-by-step explanation:

If a cross section of the rectangular pyramid is cut perpendicular to the base, but not passing through the top vertex, what would be the shape of the resulting cross section?

Answers

Triangle

The lateral face of a pyramid is a triangle, so a cross section that passes through the top vertex and the base is also a triangle.

Help me Please!!!!!!!!!!

Answers

The answer is likely b

(middle school math vocabulary) (please help!)
so I was wondering if anyone could help me on some of these, I marked off the ones I’ve done. Thanks :(

Answers

Answer:

Equations are always true

÷ and x always undo each other

that is an equation

Step-by-step explanation:

Will give brainliest!!! Can someone find the equation for this graph, beware, kinda difficult.

Answers

Answer:

2+2+4+4+4+2+2+4+4 and so on

it is a pattern that goes 2,2,4,4,4,4,2,2,4,4,4,4....

a smaller equation would be 2+2+4×3+2+2+4×2 since the graph stops there.

hope this helps! =D

the equation is y = 4x

PLEASE HELP MEEEEEEEEEEEEEE!

Answers

Answer:

C.) D.)

Hope this helps :0)

Answer:

cis the required

false

false

true

false

false

the points (6,8) and (15,20) form a proportional relationship. find the slope of the line through the points. then use the slope to graph the line

Answers

Answer:

The answer would most-definitely be C.

Hope this helped!! Brainliest?

Step-by-step explanation:

Answer:

i think c

Step-by-step explanation:

sorry if im wrong

Jonathan has 3/4 pound of grapes. How many 1/8 pound servings can Johnathan make from his grapes?

HELP PLEASE

Answers

Answer:

3/4 pounds = 6/8 pounds

6/8 divided by 1/8 = 6

6 servings of grapes

Step-by-step explanation:

Hope this helps!

Answer:

3/4 divided by 1/8 = 6

Step-by-step explanation:

i hade the answer alr but somoe answer in so it may look like copying

Drag the tiles to the boxes to form correct pairs. Not all tiles will be used.
Match the equivalent expressions.

Answers

I know that 3x+3y+2(2x-y) matches 7x+y
And x-4x+6y+(14x-5y) should match 11x+y but I can’t help you on the others. Sorry

please use 3.14 for the pi

Answers

Answer:

huh

Step-by-step explanation:

pls help it is due today

Answers

264 students are in the whole entire school
Its 230 trust extending answer

am i right or wrong pls help

Answers

Answer:

Your correct!

Answer:

Step-by-step explanation:

your final score is at least 117 points (second)

because you can be hit by an asteroid and game will end before you are able to score more points, or you can keep on scoring more than 117

I NEED HELP ASAP PLEASE!!!

Choose Yes or No to tell whether the expression represents a 20% discount off the price of an item that originally cost d dollars.
A. 0.8d

B. d – 0.2

C. d – 0.2d

D. 1 – 0.2d

Answers

Answer: The answer is .D

What is the area of this trapezoid?

50 in²

108 in²

126 in²

192 in²

Answers

Answer:

126 in2 or area

Step-by-step explanation:

2x9 for triangle sides then divide 2. =9 add the 2 triangle together =18

18+area of rectangle or 12x9 = 108+18=126

126 is the correct one

i'll give brainliest to first person to answer!!

a triangular prism has a base area of 12cm2 and a height of 4cm
what is the volume?

3 cubic centimeters
24 cubic centimeters
124 cubic centimeters
48 cubic centimeters

Answers

Answer: 48

Step-by-step explanation:

V=48cm³

h Height 4 cm  

AB Base area 12 cm

( I don't think this is the correct answer)

Answer: 48 cubic centimeters

Step-by-step explanation:

Go to go-ogle look up your answer and then you should be at this "Triangular prism" then you can put in the numbers and get the answer right and its really easy! I hope you have a nice day.

Other Questions
steph curry's free throw rating is approximately 88%. suppose curry completes 15 free throws in a row. what is the probability he completes his next free throw? A flat-bottomed barge loaded with coal has a mass of 4.80 105 kg. The barge is 20.0 m long and 10.0 m wide. It floats in fresh water. What is the depth of the barge below the waterline? determine the general solution of x = (1 1 1 1 ) x Conversion of 2PG to PEP is catalyzed by a/an: O Dehydratase O Phosphorylase O kinase O Isomerase A cycling race is 17 miles long. The cyclists will begin at point S and ride a number of laps around a neighborhood block. After the last lap, the cyclists will sprint 2. 0 miles to the finish line. A rectangle with a width of 0. 75 miles and height of 0. 5 miles. The 2 mile finish comes out of one corner. Using the equation w (1. 5 1) 2 = 17, the races organizer determined the cyclists will need to ride 9 laps before the sprint to the finish. Which explains the error? The equation should be 0. 75 w 0. 5 w 2 = 17, and the cyclists will need to ride 12 laps before the sprint to the finish. The equation should be 2 (0. 75 w 0. 5) 2 = 17, and the cyclists will need to ride 21 laps before the sprint to the finish. The solution should be 6, and the cyclists will need to ride 6 laps before the sprint to the finish. The solution should be 8, and the cyclists will need to ride 8 laps before the sprint to the finish. The CO ligands in the molecule Ni(CO)4 could have two possible geometries a tetrahedral arrangement of carbon monoxides around the central nickel atom, or a square planar geometry in which all of the atoms are in the same plane and all of the C-Ni-C angles are 90. For each geometry, determine the following:(a) What is its point group?(b) Write the reducible representation for the C-O stretching vibrational modes. (Hint: For the square planar form, C2' and sv pass through CO ligands, whereas C2" and sd are between them.)(c) Use the reduction formula to determine the irreducible representations for the C-O stretching vibrational modes.(d) Which of the C-O stretching vibrational modes are allowed in the infrared spectrum, and how many absorptions could potentially be observed?(e) Which modes are allowed in the Raman spectrum, and how many emissions could potentially be observed?For the square planar geometry:(e) Write the reducible representation for all of the atomic motions for Ni(CO)4.(f) Use the reduction formula and the character table to determine the irreducible representations for the vibrational modes only.(g) Which of the vibrational modes are allowed in the infrared spectrum, and how many absorptions could potentially be observed?(h) Which modes are allowed in the Raman spectrum, and how many emissions could potentially be observed?Please help I have no idea how to do this! If preble had purchased 186,000 pounds of materials at $6.80 per pound and used 175,000 pounds in production, what would be the materials quantity variance for march? Which of the following is not a potential problem of using more nuclearenergy?OA. Most nuclear plants can only operate for 30 - 40 years.OB. Cost to build a nuclear plant is very highOC. Spent nuclear fuel is dangerous if handled wrongOD. The cost of nuclear fuel is very low compute the probabilities that there is no birthday collision among t people for t = 10, 25, 40. Find the angle r between the reflected ray and the vertical. Express the angle between the reflected ray and the vertical in terms of and a. a plot of the number of neutrons (n) on the y-axis vs. the number of protons (z) on the x-axis for all stable nuclides gives a curve, called the of , which can be used to predict nuclide stability. Language: HaskellWrite a function countInteriorNodes that returns the number of interior nodes in the given tree.Use the definition and Tree below below:Tree:data Tree1 = Leaf1 Int| Node1 Tree1 Int Tree1Definition:countInteriorNodes :: Tree1 -> Int Consider the following cash flows: Year Cash Flow 0 $-28,600 1 15,100 2 13,800 3 10,200Requirement 1:What is the profitability index for the above set of cash flows if the relevant discount rate is 11 percent? (Do not round intermediate calculations. Round your answer to 3 decimal places (e.g., 32.161).)Profitability indexRequirement 2:What is the profitability index if the discount rate is 16 percent? (Do not round intermediate calculations. Round your answer to 3 decimal places (e.g., 32.161).)Profitability indexRequirement 3:What is the profitability index if the discount rate is 23 percent? (Do not round intermediate calculations. Round your answer to 3 decimal places (e.g., 32.161).)Profitability index true or false? the u.s. government can set interest rates by controlling the money supply. select the correct answer below: true false create a list of partitions of n for 1 n7. use this list to compute pn for 1 n7. consider the following integral. x 5 x dx (a) integrate by parts, letting dv = 5 x dx. c (b) integrate by substitution, letting u = 5 x. What effect would rise in the supply of pakistan paper products have on the market supply of paper Question 13 ptsImperialism is best described as which of the following?Group of answer choicesA foreign policy in which a nation takes action or becomes involved in the political problems of another countryA foreign policy in which a nation stays out of the political affairs of other nations in an attempt to remain free from foreign entanglementsA foreign policy that extends the rule or authority of a nation over another nation politically and economicallyA foreign policy in which a nation works in cooperation with other nations to influence world affairsFlag question: Question 2Question 23 ptsWhich of the following contributed to the start of the Spanish-American War?Group of answer choicesYellow journalisms stories about cruel conditions in CubaPresident McKinleys desire to retaliate against the de Lome LetterReports that Cubans were mistreating Spanish people in CubaSuspected Cuban involvement in the USS Maine explosionFlag question: Question 3Question 33 ptsWhich of the following was a consequence of the Spanish-American War?Group of answer choicesSome Americans were worried about being an imperial power.Spain gained control of all Cuban territory from the United States.The United States gave freedom to people in the Philippines.Spain gained control of Puerto Rico and Guam from the United States.Flag question: Question 4Question 43 ptsWhich of the following is a result of the United States expansion into Asia?Group of answer choicesThe Open Door Policy was negotiated to create balanced trade for the United States and European nations in China.China created an Open Door Policy to partner with European spheres of influence and increase trade with the United States.The European spheres of influence negotiated the Open Door Policy to prevent the United States from trading with China.The United States became involved in a war in Asia to protect the territories from being acquired as European spheres of influence.Flag question: Question 5Question 53 ptsWhich of the following examples best illustrates how militarism led to WWI?Group of answer choicesPan-Slavic activists wanted to maintain Serbia as an independent country, but Austria-Hungary controlled the Balkans.With the establishment of colonies, the European Powers were able to rule indirectly and grow their economic and political influence.Germany aimed to expand its navy, while Great Britain insisted on maintaining its position of naval dominance.Once Serbia came under Russian protection, a series of declarations destabilized an era of peace.Flag question: Question 6Question 63 ptsWhich of the following describes the U.S. rationing effort to conserve food for troops who were overseas in WWI?Group of answer choicesVictory gardensMeatless MondaysVictory bondsDaylight savings timeFlag question: Question 7Question 73 ptsWhich legislative action from the World War I era gave the president permission to mobilize the National Guard during emergency situations?Group of answer choicesThe Joint Economic CommitteeThe Committee on Public InformationNaval Appropriations ActNational Defense ActFlag question: Question 8Question 83 ptsWhich of the following was a provision of the Treaty of Versailles?Group of answer choicesAllied and Central powers were both forced to acknowledge their blame for the war.Germany was forced to return the region of Alsace-Lorraine to France.All Allied powers were forced to give up their colonial land holdings abroad.Austrians were forced to give up all their territorial claims to China, the Pacific, and Africa.Flag question: Question 9Question 93 ptsWhich of the following explains how the assembly line changed the way people lived?Group of answer choicesWomen began earning equal wages to men, as a result of improved working conditions.Families stayed home more to fully enjoy their newly purchased consumer products.Children attended school more regularly because they were no longer needed as wage earners.People explored different regions of the U.S. and developed larger tourist industries.Flag question: Question 10Question 103 ptsWhich of the following was a cause of the Great Depression?Group of answer choicesBuying on margin weakened some company stocks.The unemployment rate was at a record high.Banks extended personal credit and couldnt collect on loans.The Dawes Plan collapsed global trade, damaging the economy. The plane is fee away from17. Find the value of x to the nearest tenth (2 points)work:X =1312I which of the following can provide a user with a cloud-based application that is integrated with a cloud-based virtual storage service and can be accessed through a web browser?