Mathematics Middle School

if x+a=a+x=x for all value of x,what is the value of a?

Answers

Answer 1

Answer:

Wouldn't a=a

Step-by-step explanation:

from what Im thinking, x is negative and a is positive, so now it is (-) + (+) = (+) + (-) = (+), I dont really understand this question

Related Questions

I need an explanation on how to do this and an answer, please.

Answers

Answer:

111°

Step-by-step explanation:

the angle is question is an alternate-interior angle with the one labeled as 111° and alt-int angles are congruent

When looking at both images you can see they are the same angle, so when it gives you 111degree you can take that and flip it, to see th top angle, or x is also 111

HELP QUICK IM FAILING

Select the expression that represents the following statement: 6 times one fifth the sum of 13 and 7. (4 points)

a
6 x one fifth x (13 ÷ 7)

b
one fifth x (13 − 7) x 6

c
6 x one fifth x (13 x 7)

d
one fifth x (13 + 7) x 6

Answers

Answer is d! Hope I helped

The expression is one fifth x (13 + 7) x 6.

Correct option is (D).

What is Arithmetic?

The mathematical branch known as arithmetic deals with the study and application of numbers, their relationships, and mathematical observations. The term "arithmetic" (which comes from the Greek word "arithmos," "number") often refers to the fundamental concepts in number theory, measurement, and computation (that is, the processes of addition, subtraction, multiplication, division, raising to powers, and extraction of roots).

As per the given data:

We have to find the expression which represents 6 times one fifth the sum of 13 and 7.

Let's say the expression is x.

x = 6 × one fifth the sum of 13 and 7

x = 6 × (1/5) × the sum of 13 and 7

x = 6 × (1/5) × (13 + 7)

Hence, the expression is one fifth x (13 + 7) x 6.

To learn more about arithmetic, click:

brainly.com/question/660898

#SPJ3

Two trains started moving at the same time, train A from Boston to New York, and train B from New York to Boston. The distance between the train stations in New York and Boston is 240 miles. The average speed of train A is 60 mph, which is 3 4 of the average speed of train B.how far from new york will the trains meet

Answers

Answer:

1.7

Step-by-step explanation:

The answer is 1.7 hope this helps

Find out what belongs in the missing space
Will give brainliest :)

Answers

Answer: 10 cm

Step-by-step explanation: I think

The answer for your question is 10

terry earned x dollars selling electronics last month. this month he earned $18 less than twice the amount he earned last month. write an expression to represent the amount he earned this month.



if terry earned $1700last month, how much did he earn this month?

Answers

Answer:

2x - 18

$3,382

Step-by-step explanation:

x = number of dollars gained last month

this month:

twice the amount = 2x

minus $18 = 2x - 18

x = 1,700

2x - 18

2(1700) - 18

3,400 - 18

$3,382

I think it is 2x-18

PLS HURRY The letter
represents the location of -1.5 on the number line.
A B C
D
-3
-2
-1 0
1
2 3

Answers

i’m pretty sure it B
Yea the answer is B on the number line

Solve the inequality: -3(x+4)<33
PLEASE NOTE: IF U ARE NOT SURE OF YOUR ANSWER THEN DONT ANSWER THE QUESTION.

THANK YOU!

Answers

Here’s my work:
-3(x+4)<33
-3x-12<33
+12<+12
-3x<45
=x>15
The answer is x>15
It’s 33(c+4) I hope it helps


(no links plz) need help!

Answers

The second one because it is the only one that makes sence

Answer:

b

Step-by-step explanation:

Help me please fhdgdyfcgfjhgfjhfxyfjdjfhdghfjfghjhgfjh

Answers

Answer:

94cm squared

Step-by-step explanation:

94 centimeters don’t forget to square your answer !

ANSWER BOTH QUESTIONS FOR BRAINLIEST TY :)

Answers

Answer:

Angle X; 39Angle Y; 129

Step-by-step explanation:

180-90

90

This gives us the measurement of 51+x.

90-51

39

This is x as well as the angle that is across from it.

x+90=y

39+90=129

y=129.

to find the last angle, we add 90 to 51. This gives us 141.

So, now we add up all of the angles to double check everything. If they all add up to 360 then we are correct.

39+39+51+90+141=

360.

This means that we have solved everything correctly and that these are the correct answers.

I know that this is really confusing but the answers that you need are at the top so hopefully this helped!

Angle x: 39
Angle y: 129

39 + 90 = 129


Car A used 40.5 L of gasoline to travel 450 km. Car B used 18.7 L to travel 220 km. Circle the car with better fuel mileage. Justify your answer by calculating each car’s L/100 km rate. Show your work.

Answers

Answer:

Car B has the better fuel economy.

Step-by-step explanation:

Calculate the fuel consumption for the two cars:

Car A:  (450 km) / (40.5 L) = 1.11 km per L

Car B:  (220 km) / (18.7 L) = 1.18 km per L

Car B goes further on one L of gasoline than Car A.  

Represent each set of data in a dot plot. Determine the median, mode, and range.

Answers

Answer:

i can't remember these things

Figure out length in inches for brainiest and 5 stars.

Answers

Answer:

Step-by-step explanation:

The answer is 180 inches if your asking to convert 15ft into inches

please help asap im being timed :sob:

Answers

12 2/5 of 30 students would be 12 hopefully this helps !!

Answer:

12 are playing chess and 10 are playing sudoku

Step-by-step explanation:

Use the given line of best fit to approximate the rate of change relative to the scatter plot below.

A. 2/5 hours per pound

B. 1/2 hours per pound

C. 3/5 hours per pound

D. 3/4 hours per pound

Answers

I am pretty sure that the answer is B!



Explanation:




Hope that my explanation helped you!!
The answer is B :) ive had this question before

6x^2 - 18x - 240 = 0
solve for x.
Find solutions that are greatest to least.

Answers

6x^2 -18x -240=0 is a quadratic equation. Therefore you can use the quadratic formula to find ‘x’.

The greatest solution will be 8 and least solution will be -5.

A polynomial equation is given which is 6x² - 18x - 240 = 0

We have to find out the solutions that are greatest to least.

What do you mean by the quadratic equation ?

Quadratic equation is a polynomial equation whose highest degree is two . It is expressed in the form of ax² + bx + c = 0.

As per the question ;

Equation is ;

6x² - 18x - 240 = 0

Let's take 6 as common ;

6 ( x² - 3x - 40 ) = 0

or

x² - 3x - 40 = 0

This can be written as ;

x² - 8x + 5x - 40 = 0

x ( x - 8 ) + 5 ( x - 8 ) = 0

or

( x + 5 ) ( x - 8 ) = 0

or

x + 5 = 0

and

x - 8 = 0

So ;

x = - 5 and 8

Thus , the greatest solution will be 8 and least solution will be -5.

To learn more about polynomial factorization click here ;

https://brainly.com/question/26685427

#SPJ2

Transform the equation.

Stretch y = 3x by a factor of 2.

The transformed equation is = ?

Answers

Answer:

shrinking means divide so f(x) = x / 2  = 1/2

f(1/2) now shows 3/2y

y = 3x now = y = 3/2x

multiply by two. y=6x

Please help!
Hopefully the attached image makes sense.

Answers

Answer:

The first one is false the second one is true and the last one is false

Step-by-step explanation:

I am in 7th grade

first one- false. second one- true. third one- false!! hope this helps :)

I'm 13 and still have loose teeth, Please help thnk you!

Answers

Answer:

the answer for the missing box there is a +.

Step-by-step explanation:

the reason is is plus is because 202-9x8-5+6 gives you 131 i used a calculator homie

hoped this helped

It is a + sign lllllldkdbxidjdjdhcb

Use a proportion to solve:



The school bus drives at 96 miles in 4 hours. If it continues at the same rate, how many miles can the bus travel in 7 hours?

Answers

Answer:

420 miles

Step-by-step explanation:

168!! 96 divided by 4 is 24, so the bus drives 24 miles a hour, 24 times 7 is 168!

Sophie has a doll collection with 36 dolls. She decides to sell s dolls to a museum and has r dolls remaining.
What is the independent variable?

Answers

R dolls is the independent variable

The independent variable is R dolls because the amount of dolls you have controls how many dolls you can sell. If you sell all of your dolls you can no longer sell and you’ll no longer have dolls. This means R is x (Independent variable) and S is y (Independent variable.
R dolls would be independent because that number controls the amount of dolls that you can sell.

Hai, please help! I'l give brainliest to the first correct answer

Answers

Answer:

1. False

2. True

3. False

Step-by-step explanation:

I believe it should be false, true, false

(Plz no links)
Help needed a lot!!!!

Answers

Their elevation changed -150ft. Per minute
Their change is negative
The answer is -150ft your well

can someone help me with this please? i appreciate it!

Answers

Answer:

c and e

Step-by-step explanation:

1×5=5

2×5=10

other answers don't work

C and E!

porque 2*5=10 and 1*5=5

If all summer shirts are on sale for 45% off, what would be the discount on a $30 shirt?​

Answers

The shirt would be $13.50 off and therefore cost $16.50

Find the value of x.

Answers

Answer:

X=39

Step-by-step explanation:

add all the sides of the traingle

X+X+10+3X-5=180

collect like terms

X+X+3X-5+10=180

5x-15=180

5x=180+15

5x=195

divide both sides by 5

5x÷5=195÷5

X= 39

Which of the following best describes the relationship between the variables on the scatter plot below?

A. non-linear association

B. linear association

C. linear and non-linear association

D. no association

Answers

I think the answer is A nonLiner bc of the bend
Its is either a or d

The snack bar at Spare Me Bowling Lanes sells hot crisps for $2 and popcorn for $3.50. Last Friday, they sold 10 more popcorns than hot crisps and made a total of $211. Which of these systems of equations can be used to find the number of hot crisps, h, and the number of popcorns. p, that were sold?

A 2h + 3.5p = 10 p = h + 211

B2h + 3.5p = 211 h - P = 10

C2h + 3.5p = 211 p = h + 10

D 2p + 3.5h = 211 p + n = 10​

Answers

it’s for sure the answer is C

Help Me With Functions Part 3. (2 more after this one)

Answers

Answer:

I believe your answer is

C.

Step-by-step explanation:

There isn't a function because the numbers are scatter throughout the diagram.

And there isn't a relation because once again, the numbers are random depending on the student and nothing seems to be balanced.

Thus, C makes the most since.

I'm not 100% sure but hopefully this is correct!

Which expression has a value less than the given expression when x = 5?



3x + 15




3(x+5)

4x + 5

2x²

x² + 5

Answers

The answer is 4x + 5
the answer is forsure 4x+5
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