Mathematics Middle School

Justify each step used to simplify the expression. 1. 3x+ 2y− 2x+ 2 = 3x− 2x+ 2y+ 2

Answers

Answer 1

Answer:

.

Step-by-step explanation:

well let’s think about it this way. we can take the like numbers and add or subtract them right? so let’s think of all the like numbers.

3x, -2x, and 2x are like numbers

2y, and 2y are like numbers

2 and 2 are like numbers.

now that we have all of the like numbers down, lets start with the first set of numbers before the = sign.

3x+ 2y- 2x+ 2

well since we have 2 like numbers in there, let’s add those, so we have 3x + 2x, which that would give us 5x. since we have nothing else in that, out expression for that one would be 5x + 2y + 2. next one we have:

3x - 2x+ 2y+ 2

we have like factors in this one too. since we have a subtraction sign in between them, we have to take 3x - 2x which gives us 1x or x. which that expression would be (x + 2y + 2). if you have to add the expressions together the whole thing would be (6x + 4y + 4).

if the (-) is supposed to be a negative, then the problems would be, x + 2y+ 2; x + 2y + 2. which the ending would be 2x + 4y + 4. hope this helps. if i’m wrong someon correct me.

Related Questions

Debra buys a new mountain bike for 750 dollars. Sales tax is 9%. How much does Debra actually have to pay?

Answers

Answer:

817.50 i hope this helps :)

Answer:

$817.50

Step-by-step explanation:

9/100× 750 = 67.50

she's paying $67.50 sales tax.

750+67.50=817.50

Debra's really paying $817.50.

helpppppppppppppppppppppppp

Answers

Answer:

1.

Step-by-step explanation:

The answer is 9.25h - 7.50

A bicycle has listed a price of $561.95 before tax. If the sales tax rate is 8.5%, find the total cost of the bicycle with sales tax included. Round your answer to the nearest cent, as necessary

Answers

bicycle + sales tax = $4,776.575 = 560 for the rounding
first we need to make your percent a decimal:

.085

that multiply that by the cost

$47.77

lastly, add that to the cost.

ANSWER: $609.72

Hope it helps! :)

Please answer! I will mark Brainlist!

Answers

Answer:

1. -3

2. -0 i think

3. 4

Step-by-step explanation:

sorry if this is wrong good luck!!<3

I’m soooo sorry but can y’all plzzz help me just a couple more times!

Answers

Answer:

26/35

Step-by-step explanation:

Each fraction is increasing by 1/35. Therefore, 25/35 + 1/35 = 26/35.

Answer:

[tex]\frac{26}{35}[/tex]

Step-by-step explanation:

We have four fractions and asked to find the next fraction in the sequence.

The four fractions are increasing one by one by first glance, therefore to find the answer we need to add 1/25 to the last value seen.

What is 1 + 25?

26

[tex]\frac{26}{35}[/tex]

What type of association is shown in the scatterplot ? :

A ) a positive nonlinear association

B ) a negative linear association

C ) no association

D ) a positive linear association

Answers

Answer:

A}

Step-by-step explanation:

I would say C bc it doesn’t seem to be going in any certain direction

Which question can be represented by the equation: ? x 1/4 = 5
A. How many 5s are in 1/4?
B. What is 5 groups of 1/4?
C. How many 1/4s are in 5?
D. What is 1/4 of 5?

Answers

Answer:

C

Step-by-step explanation:

i'm pretty sure thats the answer

C I think...... sorry if it’s wrong

(SAT Prep) Find the value of x.
Whoever answers first gets brainliest!

Answers

I believe it's 30°

Sorry if wrong

I think the answer is 120 degrees

Pls helpppppppp!!!!!!!!!!!!!!!!!!!!

I'll award brainliest

Answers

Answer:

I swear i had the exact same problem

Step-by-step explanation:

826 1/25

The tip of lighting rod will be 825.04 above sea level

Can someone help? This is so stressful

Answers

Answer :
-1/6

Step by Step :
3/4x4/9=12/36=1/3
1/3+(-1/2)=-1/6

Answer:

-1/6

Step-by-step explanation:

first multiply what is in the parenthesis then add -1/2

In Harold’s class, there are 7 boys for every 6 girls. Identify three equivalent ratios to compare boys to girls.

Answers

Answer:

7:6

14:12

21:18

28:24

7:6 14:12 21:18 the are the answers to your question

2 times what equals 10.3?

Answers

the answer is 5.15 :)

Answer:

5.15

Step-by-step explanation:

2 times what equals 10.3

To solve this problem, turn this into an equation and substitute the missing value for x.

2x=10.3

Then, divide each side by 2 to isolate x.

x=10.3/2

Solve.

x=5.15

Write a phrase for EACH expression:

10y

x - 3

12n

Answers

10 times a number y
3 subtracted by A number x
12 times a number n
10 multiplied by (y)
(X) minus 3
12 multiplied by (n)

Complementary angles are two angles whose measures have a sum of 90 degrees. Angles x and y are complementary. The measure of angle x is 24 degrees greater than the measure of angle y. Determine the measures of angles x and y.

Answers

Show me a picture of u have it so I can answer
Using the equation (x+24)+x=90 you figure out the X = 33 so y equals 33 and x equals 57

Miles bought a new pair of baseball cleats for $64.95. The sales tax is 6.5%. What is the total cost that Miles will pay?

Answers

Answer: $69.17175

Step-by-step explanation:

The cleats are $64.95. Tax is a percentage taken off certain goods so

6.5% of $64.95 which can be also restructured as 6.5/100 times $64.95 which is $4.22175. Tax is added onto the final cost so he shall pay $64.95 plus $4.22175. (I think)

Plz help i need answer fast i will mark brainliest and follow you

Answers

Answer:

i don't know  if i am right but the rectangle should be -4 and i don't know for triangle

Step-by-step explanation:

-5.6 > X + 3.6

I need help with my edgeunity

Answers

Answer:

Inequality Form: x < -9.2

Interval Notation: (-∞, -9.2)

Step-by-step explanation:

Given mn, find the value of x.

Answers

the answer is x = 17, hope this helps :)

Answer:

x = 17

Step-by-step explanation:

2x - 5 = 3x - 22

put x on one side and the whole numbers on the other

-x = -17

change to positives

x = 17

Patrick drank 64 fl. Oz. of water in 3 days. At this rate, how long will it take him to drink a gallon ( 128 fl oz)?

Answers

Answer:

6 days

Step-by-step explanation:

It will take him 6 days to drink a gallon

The question is this;

Answers

Step-by-step explanation:

X is 24

Answer:

ans =24

Step-by-step explanation:

Design a simulation that you can use to model the situation. Then use your simulation to find the experimental probability.
The probability that a meal at a restaurant is overcooked is 10%. Estimate the probability that exactly 1 of the next 2 meals is overcooked
What is the experimental probability?______

Answers

Answer:

Did you find the answer to this yet??

Step-by-step explanation:

I need help with the question.

Answer:0.18

Step-by-step explanation:

[HELP]
Don has an album that holds 900 compact discs. Each page of the album holds 9 compact discs. If ​28% of the album is​ empty, how many pages are filled with compact discs ​?

Answers

Answer:

72 pages (648 discs)

Step-by-step explanation:

Answer:

Step-by-step explanation:

72 pages/648 discs

Let's see about this one!

Answers

Answer:

6

Step-by-step explanation: 3*2=6

6 because 1 over 2 is flipped when it is devided by 3 so it is 3 times 2 which is 6

Tyshawna and Jean both work at a sneaker store and make a fifthteen dollar commission for every sneaker sold. However, Jean makes a flat rate of 75 dollars a day because he has been working at the store longer than Tyshawna. Tyshawna makes a flat rate of 65 dollars a day.
(a. Will Tyshawn and Jean ever make the same amount of money in a day? Why or why not?

Answers

Answer:

Since Jean makes a higher flat rate than Tyshawna, they won't make the same amount in a day. Jean makes a flat rate of 75 dollars a day, while Tyshawna makes a flat rate of 65 dollars a day. Tyshawna is only a few flat rates behind. Although it would seem like they could make the same amount, they wouldn't be able to. If they both had the same flat rate, they would be making the same amount almost everyday.

I hope I helped :)

Answer:

yes, because the total pay is based on how many shoes are sold and not how long one has been there so if Tyshawna sells more shoes her or his pay rate will rise.

Step-by-step explanation:

Please help me. Please

Answers

Answer:

im pretty sure that the answer would be B

Step-by-step explanation:

Answer:

it would be B bc u will replace 2 with 6

Step-by-step explanation:

hope this helps

Gary’s gift shop borrowed $3,815 at an annual interest rate of 4% if they owed $1,526 in interest, how many years will it take to pay back the loan?

Answers

Answer:

34.7

Step-by-step explanation:

34.7 is the answer..........

My smart friends couldn't even figure this out.

Answers

the answer would be c, since youre dividing 1/3 cup of oil into 2 lamps
It’s D and F multiplying by two is the same as dividing by one half.

What could I have dropped?
A. my croissant
b. my phone
c. mountain dew

Answers

Answer:

a croissant

Step-by-step explanation:

One-third times the difference of a number and 5 is Negative two-thirds. Which equation best shows this? One possible first step in solving the equation in the above problem is to . The value of the number is .

Answers

Answer:

1/3(n - 5) = -2/3

distribute 1/3

3

Step-by-step explanation:

I got it correct on edgen

1 = A   The first answer on the drop down menu

2 = C   The third answer on the drop down menu

3 = B   The second answer on the drop down menu

I will award branliest

Translate from binary to decimal:

a) 11₂
b) 111₂

Answers

the answer is

1) 3

2) 7

since each place value is different from base 10
Here’s the answer:
a) 3
b) 7
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