how do I simplify this algebraic expression 3x+2a-4x

Answers

Answer 1

Start by changing the -4x to + -4x.

So we have 3x + 2a + -4x.

To simplify, we can only combine what are called our like terms and in this problem, we have a pair of like terms in our x terms.

3x + -4x simplifies to -x.

So our answer is -x + 2a.

Note that if you wrote your answer as -1x + 2a, it means the same thing. However, as we move farther into math, we usually tend to drop the -1 or 1 that is in front of a variable since it's implied


Related Questions

Question 4(Multiple Choice Worth 1 points) (03.05 MC) What does > −2 indicate about the position of and −2 on the number line? is located on the right of −2 is located on the left of −2 is located on the right of 0 and −2 is located on the left of 0 is located on the left of 0 and −2 is located on the right of 0

Answers

Corrected Question

What does [tex]-\dfrac35>-2[/tex] indicate about the position of [tex]-\dfrac35[/tex] and −2 on the number line?

Options

negative 3 over 5 is located on the right of −2

negative 3 over 5 is located on the left of −2

negative 3 over 5 is located on the right of 0 and −2 is located on the left of 0

negative 3 over 5 is located on the left of 0 and −2 is located on the right of 0

Answer:

(A)negative 3 over 5 is located on the right of −2

Step-by-step explanation:

Given the inequality: [tex]-\dfrac35>-2[/tex]

On a number line, numbers are written from the left to the right in ascending order.

Therefore:

Any number y to the right of another number x is greater than x, y>x.Any number a to the left of another number x is less than b, a<b.Negative numbers are to the left of 0.

In the given inequality  [tex]-\dfrac35>-2[/tex] , both numbers are negative and are therefore to the left of 0.

However, since [tex]-\dfrac35[/tex] is greater than -2, it is located to the right of -2 .

The correct option is A.

Answer:

Step-by-step explana

What are opposite numbers

Answers

Answer:

Opposite numbers are numbers that, when placed on a number line, are the exact same distance away from the 0, but on opposite sides/opposite directions

Answer:

Opposite number or additive inverse of any number (n) is a number which, if added to n, results in 0, the identity element of addition. The opposite number for n is written as −n. For example, −7 is opposite to 7, because with −7+7=0

You can say that the opposite number of a number, is the negative version of the positive number. This is what the opposite of 7 is or the opposite of -7.

(6^4)(6^−2) = please help will get brainliest!

Answers

Answer:

4-2=2 6^2=36

Step-by-step explanation:

Answer:

= 36 3/35

Step-by-step explanation:

(6)^4 × (6^-2)

= 1290 × 1/36

= 1290/36

= 36 3/35

Write down all the factors of 15.

Answers

Answer:

1,3,5,15

Step-by-step explanation:

Answer:

Step-by-step explanation:

Factors of 15:

1 , 3 , 5 , 15

a trapezoid has bases that measure 9cm and 5 cm. the height of the figure is 4cm. what is the area of the trapezoid

Answers

Answer:

28cm^2

Step-by-step explanation:

The area of a trapezoid is the bases added divided by two times the height.

(9+5)/2*4=7*4=28

28cm^2

Suppose the board of directors for Cosmic Coffee wants to know the price range for the lowest 40% of drink sales. Find the z-score associated with the upper boundary of of this price range.

Answers

Answer:

The z-score associated with the upper boundary of of this price range is -0.25.

Step-by-step explanation:

It is provided that the board of directors for Cosmic Coffee wants to know the price range for the lowest 40% of drink sales.

If X represents the price range of drink sales, then

P (X < x) = 0.40

Consider that X follows a Normal distribution.

To compute the probability of a normally distributed random variable we need to first convert the raw score to the z-scores.

The formula to z-score is:

[tex]z=\frac{X-\mu}{\sigma}[/tex]

Then,

P (X < x) = 0.40

⇒ P (Z < z) = 0.40

The value of z for this probability is:

z = -0.25

*Use a z-table.

Thus, the z-score associated with the upper boundary of of this price range is -0.25.

Answer:

-0.25

Step-by-step explanation:

correct on plato

PLEASE HELP ME!!!

I have 5 pinks, 4 yellow, 3 orange, and 3 red starbursts. What is the probability that I will randomly pick a yellow starburst, put it back in the bag, and then randomly pick an orange starburst?

A. 7/15

B. 4/75

C. 4/15

D. 3/15

Answers

Answer:

B. 4/75

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

For each trial:

The probabilities of picking each startbust are the same, so each event is independent.

Independent events:

Two events, A and B, we have that:

[tex]P(A \cap B) = P(A) \times P(B)[/tex]

In this question:

Event A: Yellow starburst on the first trial.

Event B: Orange starbust on the second trial.

4 yellow out of 5+4+3+3 = 15 starbursts.

This means that [tex]P(A) = \frac{4}{15}[/tex]

3 orange out of 15 starbursts.

This means that [tex]P(B) = \frac{3}{15}[/tex]

Probability of A, then B:

[tex]P(A \cap B) = P(A) \times P(B) = \frac{4}{15} \times \frac{3}{15} = \frac{4*3}{15*15} = \frac{4}{15*5} = \frac{4}{75}[/tex]

So the correct answer is:

B. 4/75

On your birthday you receive an iPhone valued at $899. The value of the iPad decreases by 25% each year. What will its value be 4 years from now?

Answers

Answer:

284.765625

Step-by-step explanation:you get by subtracting 25% from 900 4 times

Answer: 56.18

Step-by-step explanation:    if you know about the line equals line method, that should be able to help.        

 224.75             25%

----------------=-----------------    

899                  100%

you then cross multiply 899 and 25 then divide it by 100.  

that will be the drop per 1 year so than divide 224.75 with 4 and then your answer should be 56.18

Please, I don’t get this. You don’t need to do step by step

Answers

1.

Equation: (3×n)-7=2 (n is just the missing number)

Solution: n is 3 or just 3

2.

You bought 5 pairs of socks

Explanation:

96-76=20

20÷4=5 pairs of socks (Before tax)

3.

The number is 2

Explanation:

5×n=2(n+3)

5×2=2(2+3)

10=2(5)

10=10

Hope this helps!

Mean temperature: 78°

Standard deviation: 5°

Washington, DC

July 4: 1952 - 2011

Average Daily Temperature

Check all of the temperatures that are within one

standard deviation of the mean

o 72°

74°

799

84

Number of Years

C) ONO

DONE

Average Temperature

Answers

Answer:

74 and 79

Step-by-step explanation:

one standard deviation= 5°

range of one standard deviation: (78-5) to (78+5)

                                                        73° to 83°

A circular table top has an area of 324 square inches. Which
measurement is closest to the radius of the table top in inches?

Answers

Answer:

10 inches (10.19)

Step-by-step explanation:

Could some one plz help me with this question
P.S ignore the answer choices their wrong

25 Points

Answers

Answer:

A

Step-by-step explanation:

The formula for this type of interest is [tex]A=P(1+\frac{r}{n})^{nt}[/tex], where A is the total amount, P is the initial investment, x is the interest rate, n is the amount of times that the investment is compounded a year, and t is the amount of years. Plugging in the numbers given, you get:

[tex]A=1800(1+\frac{0.025}{2})^{2\cdot 12}=[/tex]

[tex]1800(1.0125)^{24}\approx 2425.23[/tex]

Now, she invests this into a new account, and you can set up the following equation:

[tex]A=2425.23(1+\frac{0.04}{12})^{12\cdot 7}=[/tex]

[tex]2425.23(1.0033333)^{84}\approx 3207.40[/tex], or option A.

Hope this helps!

What is it that when you take away the whole, you still have some left over?

Answers

Answer:

wholesome!!! brainliest pls :)

Answer:

wholesome

Step-by-step explanation:

you take away the first word which is whole

and u still have the word some left over

hope this helped if this isnt what ur looking for plz tell me

i think of a number multiply it by 3 and subract 2 . The result is 14​

Answers

Answer:

5.3

Step-by-step explanation:

Answer:

The answer is 5.3

Step-by-step explanation:

5.3x3-2= 13.9 but when you round its 14

What is the LCD of 2/5 and 1/10​

Answers

The LCD would be 10


explanation:

the answer is 10 3ewrrrrrrrfcgjhfdhjxgfcgv

A custodian carries a large key ring. The key ring has a radius of 4 centimeters. What is the key ring's circumference?

Answers

Answer:

About 25.13

Step-by-step explanation:

circumference equation: 2pi(r)

2pi(4) = 25.13

What is the numerical value of 3.14159

Answers

Answer:

Pi

Step-by-step explanation:

So pi goes on forever but i and guessing you are look for pi, here are the first 100 digits: 3.1415926535 8979323846 2643383279 5028841971 6939937510 5820974944 5923078164 0628620899 8628034825 3421170679.

Answer:

Step-by-step explanation:

pi=3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609433057270365759591953092186117381932611793105118548074462379962749567351885752724891227938183011949129833673362440656643086021394946395224737190702179860943702770539217176293176752384674818467669405132000568127145263560827785771342757789609173637178721468440901224953430146549585371050792279689258923542019956112129021960864034418159813629774771309960518707211349999998372978049951059731732816096318595024459455346908302642522308253344685035261931188171010003137838752886587533208381420617177669147303598253490428755468731159562863882353787593751957781857780532171226806613001927876611195909216420198938095257201065485863278865936153381827968230301952035301852968995773622599413891249721775283479131515574857242454150695950829533116861727855889075098381754637464939319255060400927701671139009848824012858361603563707660104710181942955596198946767837449448255379774726847104047534646208046684259069491293313677028989152104752162056966024058038150193511253382430035587640247496473263914199272604269922796782354781636009341721641219924586315030286182974555706749838505494588586926995690927210797509302955321165344987202755960236480665499119881834797753566369807426542527862551818417574672890977772793800081647060016145249192173217214772350141441973568548161361157352552133475741849468438523323907394143334547762416862518983569485562099219222184272550254256887671790494601653466804988627232791786085784383827967976681454100953883786360950680064225125205117392984896084128488626945604241965285022210661186306744278622039194945047123713786960956364371917287467764657573962413890865832645995813390478027590099465764078951269468398352595709825822620522489407726719478268482601476990902640136394437455305068203496252451749399651431429809190659250937221696461515709858387410597885959772975498930161753928468138268683868942774155991855925245953959431049972524680845987273644695848653836736222626099124608051243884390451244136549762780797715691435997700129616089441694868555848406353422072225828488648158456028506016842739452267467678895252138522549954666727823986456596116354886230577456498035593634568174324112515076069479451096596094025228879710893145669136867228748940560101503308617928680920874760917824938589009714909675985261365549781893129784821682998948722658804857564014270477555132379641451523746234364542858444795265867821051141354735739523113427166102135969536231442952484937187110145765403590279934403742007310578539062198387447808478489683321445713868751943506430218453191048481005370614680674919278191197939952061419663428754440643745123718192179998391

a car salesman has 7 used cars for sale. They have a mean price of $8000. What is the total price of all 7 cars?

Answers

Answer:

$155282862040271282939285047182828282828

help it's urgent!!!

Solve the system of linear equations by elimination.

x + y = 7
5x + 2y = 8​

Answers

Answer:

(-2, 9)

Step-by-step explanation:

1) Multiply each term of the top equation by two.

2(x) + 2(y) = 2(7)

2x + 2y = 14

2) Use elimination to get rid of the y's

 2x + 2y = 14

-(5x + 2y = 8)

Translates to...

    2x + 2y = 14

+ (-5x - 2y = -8)

=  -3x = 6

3) Solve for x by dividing each side of the equation by -3.

[tex]\frac{-3x}{-3} = \frac{6}{-3}[/tex]

x = -2

4) Plug in x to find the y-value

x + y = 7

-2 + y = 7

-2 + 2 + y = 7 + 2

y = 9

I hope this helps!

Helppppppppppppppppppppppp

Answers

Answer:

9

Explanation: the answer is 9 because 15 is 3 times 5 so you would have to multiply 3 by 3 to mark it to scale.

What is the value of q2– p2 for q = 4 and p = 2?
O A. 2
B. 4
C. 8
O D. 12
E.
14.

Answers

Answer:

q2- p2

4*2-2*2

8-4

B.4

Step-by-step explanation:

The value of q² - p² is 12 for the given value of p and q.

What is Function?

A relation between a collection of inputs and outputs is known as a function. A function is, to put it simply, a relationship between inputs in which each input is connected to precisely one output. Each function has a range, codomain, and domain.

Given, The value of p = 2 and q = 4

the value of q² - p² for the given value

=> q² - p² = 16 - 4

=>q² - p² = 12

therefore, For the specified values of p and q, the value of q2 - p2 is 12.

Learn more about function here:

https://brainly.com/question/21145944

#SPJ5

-32=2(x2 + 10x)
what are the steps to solve this

Answers

Answer:

idk reeeeeeeeee

Step-by-step explanation:

idkreeeeeeeeee

Answer: x= -4/3

Step-by-step explanation:

1) Ok first you want to distribute 2 with 2x and 10x , so multiply 2 with 2x and 10x

You would get -32= 4x+20x

2) then you add the x together which is -32= 24x

3) your goal is to get x by itself,what u would do is divide 24 on both sides and you are left with -32/24= x

4) be careful you are not done yet because you have to simplify-32/24, if you simply it, you would get -4/3 because -32 and 24 is divisible by 8.

So your answer would be x = -4/3

How many solutions does this equation have?

–6 − 8r = 8 − r

Answers

Answer:

1

Step-by-step explanation:

–6 − 8r = 8 − r

− 8r - r = 8 + 6

-9r = 14

r = -14/9

Answer:

r =-2

Step-by-step explanation:

–6 − 8r = 8 − r

Add r to each side

–6 − 8r+r = 8 − r+r

-6 -7r = 8

Add 6 to each side

-6+6 -7r = 8+6

-7r = 14

Divide each side by -7

-7r/-7 = 14/-7

r =-2

Jane purchased a prepaid phone card for $30. Long distance calls cost 16 cents a minute using this card. Jane used bet card only once to make a long distance call. If the remaining credit on her card is $28.24, how many minutes did her call last?

Answers

Answer:

she was talking for 11 minutes

Step-by-step explanation:

take 30$ and subtract the money she has left. take that total and divide by 0.16$

left with .11 which is 11 minutes

What fraction completes the equation using a like denominator when adding 1/3 + 3/6 ?

1/3 + 3/6 = ?/? + 3/6

Answers

Answer:

The answer is 2/6 .

Step-by-step explanation:

In order to make the denorminator the same, you have to multiply both numerator and denorminator by 2 :

[tex] \frac{1 \times 2}{3 \times 2} [/tex]

[tex] = \frac{2}{6} [/tex]

What is the answer to that

Answers

Answer:

(1/3)x + 3 >= 3

<=> (1/3)x >= 0

<=> x >= 0

=> The only value from set satisfies, that is 0.

Hope this helps!

:)

Answer:

0

Step-by-step explanation:

⅓x + 3 》3

⅓x 》0

x 》0

Betty turned 71 this year but in three more years she will be twice as old as her daughter. How old is her daughter now

Answers

Answer: Betty's daughter is 34 years old now.

Step-by-step explanation:

So Betty is currently 71. In three years, she will be 74. So she will be twice as old as her daughter at the age of 74. To find out how old Betty's daughter is in 3 years, I will divide 74 by 2, which is 37 (74/2). Finally, I will subtract the original 3 years from the 37 years of age of Betty's daughter, and I will get my answer for how old Betty's daughter is, which is 34 years old.

These two I don’t know

Answers

Answer:

In this subtraction, PR5T and 47Y6 represent 4-digit numbers. What number does PR5T represent?

PR5T - 47Y6 = 1998

Step-by-step explanation:

Please need this by the 16th

Answers

Answer:

60

Step-by-step explanation:

12 can be broken into 3*4

15 = 5*3

The least  factors are

3*4*5 = 60

The lowest common denominator is 60

Answer:

7/12= 35/60

7/15= 28/60

How many solutions does this equation have?

0 = 2z − 2z

Answers

Answer:

infinitly many solutions

Step-by-step explanation:

0=2z-2z

2z-2z=0

so 0=0

infinitly many

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