Mathematics Middle School

-13x + 15x - 4y - 5y +2 + 3 please anwser

Answers

Answer 1

Answer:

2x - 9y) + 5

Step-by-step explanation:

(-13x + 15x) - 4y - 5y + 2 + 3

2x - 4y - 5y + (2 + 3)

2x - (4y - 5y) + 5

2x - 9y) + 5

We can't go any further because you can't add two different types of variables together (for example, you can't add x and y because they are diffrent variables.)

Hope this helps!

Related Questions

What are the factors of 24 whose difference is 10?

Answers

Answer:

the factors of 24 are 1,2,3,4,6,8,12,24

Step-by-step explanation:

The factor of 24 is - 1,2,3,4,6,8,12,24

Can someone answer this quickly no randoms plsss

Can someone answer this quickly no randoms plsss

Answers

they would become smaller and possibly more accurate or possibly less accurate - depends on what the definition is for outlier in this study.

Kayleen buys one 3 -pound bag of cat food. Her cat eats about 3/4 of a pound every week. How many weeks does one bag last?

Answers

3 ÷ 3/4

3 × 4/3 (keep, change, flip)

12/3 = 4 weeks is the answer

Hope this helps :)

Answer: 4 weeks

Step-by-step explanation:

      To find the answer to this question, we will divide 3 by 3/4 to find the number of weeks one bag will last.

3 / (3/4) = 3 * (4/3) = 12/3 = 4 weeks

          One 3 -pound bag will last the cat 4 weeks.

List the sample space of a fair, 9-sided number cube rolled while playing a board game. S = {1, 2, 3, 4, 5, 6, 7, 8, 9} S = {1, 2, 3 ,4, 5, 6, 7, 8, 9, 10, 11, 12} S = {9} S = {1,9}

Answers

Answer:

Step-by-step explanation:

Rolling two six-sided dice: Each die has 6 equally likely outcomes, so the sample space is 6 • 6 or 36 equally likely outcomes.

whice model represent cutting 40% of the ribbion

whice model represent cutting 40% of the ribbion

Answers

Answer: Model B

Step-by-step explanation: Model B, shows the cutting of 40%  of the ribbon since, if you divide it into 10 parts, with each piece representing 10%, if you take away 4 of those parts, which is equal to 40%. So it is Model B.

The answer would be Model B. The reason is because 40% is close to 50%, which is the middle. In the line plot, there are also 10 sections, and the line on Model B is on 40%.

NEED HELP REALLY FAST!!!!!!!!!

NEED HELP REALLY FAST!!!!!!!!!

Answers

I think the answer would be 8 :) hope this helps !
the answer is 10, hopefully this helps:)

Consider the inequality x>7. Determine whether each value of x shown in the table makes this inequality true. Select Yes or No for each value.

WILL GIVE BRANLIEST

Consider the inequality x>7. Determine whether each value of x shown in the table makes this inequality

Answers

Answer:

No no yes yes no

Step-by-step explanation:

-22>7

this is not true because -22 is less than 7 and the inequality is going toward it.

-7>7

this is also not true because of the same reason.

13>7

This is true becuase 13 is greater than 7. If you can't tell which number is greater. Subtract the first number from the second; if it is positive, it is greater. If it is 0 then it is equal. If it is negative then it is less than.

5>7

same as before

-39>7

same as -22

Aso, the values are the substitute for x.

1. yes 22>7
2. no -7
3. yes 13>7
4. no 5<7
5. no -39<7

Sample Answer: Make a table with inputs showing the number of bottles of water and outputs showing the total cost of the water. Use 1, 2, 3, and 4 bottles for the inputs. Find the corresponding outputs. Plot the ordered pairs in the table of the form (input,output).

Which instructions did you include in your explanation? Check all that apply.
Identify the input.
Identify the output.
Create a table for four input values.
Plot the points from the table.

Answers

The instructions that you would include in your explanation are:

Identify the output.

Create a table for four input values.

Plot the points from the table.

The instructions to be included

In the given question, a series of instructions are provided. To properly explain your process, you have to explain how you got the output. There is no need of explaining the input as they are already provided.

Next, you will Show how you created the table and why you created it in that way. Finally, indicate how the points were plotted on the table. An explanation such as this will help anyone to follow through.

Learn more about ordered pairs here:

https://brainly.com/question/1528681

#SPJ1

Answer:1 to 2

             2 to 4

Step-by-step explanation:

Find the value of x. Then find the m∠B and m∠C.

Find the value of x. Then find the mB and mC.

Answers

X=25 b=65 and c=50
You’ll get this by doing b or 3x-10 which 3x25 is 75-10 is 65, c is 2x 2x25 is 50 this total gets you 180 or 65+65+50

What's the surface area of this figure?

What's the surface area of this figure?

Answers

Answer:

488 centimeters2

Step-by-step explanation:

Surface Area = 2×(14×6 + 14×8 + 6×8) = 488 centimeters2

488 centimeters you add and multiply them

I need help on ten pls help and explains pls and thank u

I need help on ten pls help and explains pls and thank u

Answers

Answer:

C

Step-by-step explanation:5 days times how much she works per day need to be at least or greater than 240 hence why the sign is greater than or equal too.

The third option is correct

At the zoo, for every 666 adult camels, there are 555 baby camels. There are a total of 444444 adult and baby camels at the zoo.
Complete the table.
Original ratio Number in the zoo
Baby camels 555
Adult camels 666
Total camels
444444

Answers

Answer:

1 adult camel for every 11 baby camels, or 1:11

Balvinder had his first child on his 26th birthday, his second child exactly 4 years later, and his third child exactly 4 years after that. How old was Balvinder when his age was equal to the sum of his three children's ages?
Answer with explanation pls

Answers

Answer:

Step-by-step explanation:

Answer:34 years old

Step-by-step explanation:26+4+4=34

Jamie goes to school 5 times a week. Determine the equation if w represents the number of weeks and t represents the total number of times Jamie went to school
A. t = 5w
B. w = 5t
C. t = 5 + w
D. w = 5 + t

Answers

Answer:

t=5w

Step-by-step explanation:

because if you multiple 5 days by the number of weeks (w) Jamie attends schools you will get t which is the total number times Jamie goes to school.

Answer:

A. t = 5w

Hope this helps!

The area of the picture is 100 square inches. The length is 4 times the width. Find the length and width of the picture.

Answers

Answer:

The length is 20 inches and the width is 5 inches!

Step-by-step explanation:

The length is 20 inches and width is 5

Four more than half of the students in Bryan’s homeroom have tickets to attend the school’s musical. 20 students have tickets. Select all the equations that can be used to find the number of students in Bryan’s homeroom.
A. 4 – 12m = 20
B. 12m + 4 = 20
C. 12m – 4 = 20
D. 4 = 20 – 12m
E. 20 + 12m = 4

Answers

Answer:

c,e

Step-by-step explanation:

look at equasions

PLEASE HURRY! :(
Find the surface area of a square pyramid where the length of a side of the base is 10 cm and the slant height of the pyramid is 16 cm.

Answers

Answer:

420

Step-by-step explanation:

First, you multiply the base by the slant height for the area of one triangle (160). Then multiply that by 1/2 to complete the area equation. 80*4 (four triangles equals 320. Then you multiply to find the base area 10*10= 100. Add those numbers together to get 420.

The surface area of the pyramid is 178.9 square centimeter.

We have a pyramid with the base edges (L) = 10 cm and slant height (S) = 16 cm .

We have to find the Surface area of the pyramid.

What is the formula to find the surface area of the pyramid with base edge = L, base width = w and pyramid height = h?

The formula is -

\(S.A. = L^{2} + L\sqrt{L^{2} + 4h^{2} }\)

Now, firstly find the height of the pyramid - using the Pythagoras theorem-

\((S)^{2} =(\frac{L}{2} )^{2} +h^{2} \\h^{2} = (S)^{2} - (\frac{L}{2} )^{2}\\h = \sqrt{(S)^{2} - (\frac{L}{2} )^{2}} \\\)

h =  15.19 cm

Substituting the value of height in the formula of surface area -

S.A. = \((5)^{2} +5\sqrt{(5)^{2}+4(15.19)^{2} } \\\) = 25 + 5 x 30.78 = 178.9 square centimeter.

Hence, the surface area of the pyramid is 178.9 square centimeter.

To solve more questions on pyramid, visit the link below -

brainly.com/question/17615619

#SPJ2

first question in the picture

Using Question 2, what are the side lengths of Triangle 3? Select the correct choice to fill in the blank.

The side lengths will be ________________Triangle 1.

o different from

o the same as

first question in the pictureUsing Question 2, what are the side lengths of Triangle 3? Select the correct

Answers

Answer:

the same as 1 and 2

Step-by-step explanation:

you should watch it care Fully and understand it's too esay .

Same as 1 and 2 read question carefully please

PLEASE HELP! WILL GIVE BRAINLIEST!
Explain what the slope and intercept mean in each situation
3x-5y=4
-2x+6y=22

Answers

Answer:

Step-by-step explanation:

-2x+6y=22

slope is 1/3 and the intercept should be x= (-11,0) y=(0,11/3)

3x-5y=4

slope is 3/5 and the intercepts are x=(4/3,0) y=(0,-4/5)

Answer:

Step-by-step explanation: m1= 3/5
M2=1/3

PEDMAS?

Example 1:

3+8(4-2)-7

Parentheses First = 3+8(2)-7
Exponents-none
Multiply/Divide 3+16-7
Add/Subtract 19-7 = 12

Example 2:

32-(9-5)+7x3-8÷2
Parentheses 32-(4)+7x3-8÷2
Exponents 6-4+7x3-8÷2
Multiply/Divide 6-4+21-4
Add/Subtract 2+17=19

Review

Directions: Compute the answers using PEMDAS.

1) 7 x 5 + 3=

2) 8 - (6 + 2)=

3) 10 - 6 + 5=

4) (21 3) x 2=

5) (12 6) + 6=

6) 3 + 10 5=

7) 8 + 4 - 2=

8) 7 + 5 - 5=

9) 16 8 - 1=

10) (20 - 17) - 3=

11) 8 + 2 - 7=

12) 18 (4 + 2)=

13) 8 - 6 + 7=

14) 5 - (18 6)=

15) 2 + 13 - 4=

16) (7 - 4) + 3=

17) 9 - 7 + 4=

18) 2 x 6 3=

19) 15 5 + 4=

20) 8 + 6 - 4=

Answers

Answer:

1. 38  

2. 0  

3. -1  

4. 14  

5. 8    

6. 5  

7. 10  

8. 7  

9. 1  

10. 0  

11. 3  

12. 2  

13. 5  

14. 3  

15. 11  

16. 6  

17. 2  

18. 4  

19. 7  

20. 10

Step-by-step explanation:

PEMDAS stands for Parentheses, Exponents, Multiplication/Division, and Addition/Subtraction. It is a mnemonic device used to remember the order of operations when solving mathematical equations.

Here are the answers to the review questions using PEMDAS:

1) 7 x 5 + 3= 38
2) 8 - (6 + 2)= 0
3) 10 - 6 + 5= 9
4) (21 / 3) x 2= 14
5) (12 / 6) + 6= 8
6) 3 + 10 x 5= 53
7) 8 + 4 - 2= 10
8) 7 + 5 - 5= 7
9) 16 / 8 - 1= 1
10) (20 - 17) - 3= 0
11) 8 + 2 - 7= 3
12) 18 x (4 + 2)= 108
13) 8 - 6 + 7= 9
14) 5 - (18 / 6)= 2
15) 2 + 13 - 4= 11
16) (7 - 4) + 3= 6
17) 9 - 7 + 4= 6
18) 2 x 6 / 3= 4
19) 15 / 5 + 4= 7
20) 8 + 6 - 4= 10

Which points are 3.5 units apart?
(7.5, 1.2) and (7.5, –2.3)
(7.5, –3.5) and (7.5, 3.5)
(7.5, 1.2) and (7.5, 2.3)
(7.5, –3.5) and (7.5, 7)

Answers

Well this one is between A or D but leading more towards A
I believe the answer is A

Can someone help asap I will make you the brainliest

Can someone help asap I will make you the brainliest

Answers

Answer: P = 3a

Step-by-step explanation:

3(4x - 8)

12x-24

12x = 24

x = 24/12

x=2

3(4X2 = 8 - 8)

3(0)

0

Diego measured the diameter and circumference of several circular objects and recorded his measurements in the table.

One of his measurements is inaccurate. Which measurement is it? Explain how you know.

The measurement for the ____ is very inaccurate. It should be about ___ times the diameter (or a little more).

Diego measured the diameter and circumference of several circular objects and recorded his measurements

Answers

Answer:If the diameter of a circular object is 'd' units, circumference of the object will be represented by,

Circumference =

Now we will evaluate the circumferences of the different objects by the given measures of the diameters.

For Half dollar coins,

Step-by-step explanation:

   cm

For a flying disc,

   cm

For a jar lid,

   cm

For a flowerpot,

   cm

circumference of a circle is pi

can someone help me with this?

can someone help me with this?

Answers

Alrighty,

With A, we have Mrs. Ardion boating at a steady 15 mph, so that means that if we have X hours, could be 5 could be 1, but you would take that original 15mph, and you would multiply it by the amount of hours she had traveled, for example if we have 3 hours then you would do 15x3 which would give you a sum of 45 miles.

B

If Mrs. Thomason started to kayak 1/4 of an hour before Mrs. Ardoin then we would take 1/4 of an hour, which is 15 minutes so lets say Mrs. Ardoin had been boating for 2 hours, then Mrs. Thomason had been boating for 2 hours and 15 minutes. minutes. Its what the amount of time Mrs. Ardoin had gone plus 15 minutes.  

C

Mrs. Thomason is going at 10 miles an hour, and we already know that Mrs. Ardoin is going 15 miles an hour, so if we take T for Thomason, and A for Ardoin, we get 15 * X (amount of hours) = amount of miles traveled by Mrs. Ardoin, so for Mrs. Thomason its about the same, 10 * X (amount of hours) = amount travelled.

D

If Mrs. Thomason had left 15 minutes earlier, then if we do the math which would be 10 divided by 15 to get 0.6, which would mean that she is 0.6 miles ahead of Mrs. Ardoin, so if we do the math Mrs. Ardoin would meet up with Mrs. Thomason about 22 minutes into the race.

Hope this helped!

Saba and Hena saved up Rs. 81.75 and Rs 45.25 respectively to buy a gift for
Mother’s Day. How much money in all have the sisters set aside for the gift?

Answers

Answer: $127.00

Step-by-step explanation:

Step 1: Line 81.75 + 45.25 up with 81.75 on top and 45.25 underneath.

Step 2: add the two 5’s (making 10) put the 0 underneath that and carry the one over to the left. ( 7+2+1 =10) then put your decimal point after the zero. repeat process (5+1+1=7) than add up 8+4 =12

Which expression is equivalent to -1/3 ( 6x + 15 ) - 3?
a) -2x + 12
b) -2x + 2
c) -2x - 2
d) -2x - 8​

Answers

The correct answer is (D) -2x - 8.

To simplify the expression -1/3 ( 6x + 15 ) - 3, we can first apply the distributive property to the term in parentheses:

-1/3 ( 6x + 15 ) - 3 = -1/3 * 6x - 1/3 * 15 - 3

Then we can simplify using the properties of multiplication and division:

-1/3 * 6x - 1/3 * 15 - 3 = -2x - 5 - 3

Finally, we can combine like terms:

-2x - 5 - 3 = -2x - 8

The correct answer is therefore (D) -2x - 8.✅

The correct answer B

The seventh-grade class is building target areas for a PE activity. The bases for the game will be in a circular shape. The diameter of each circle is 3 feet. Approximately, how many square feet of the turf need to be painted for a base circle? Use 3.14 for π and round your answer to the nearest tenth.

a
7.1 square feet

b
9.4 square feet

c
18.8 square feet

d
28.3 square feet

Answers

The answer is A 7.1 square feet.
You would need about 7.1 square feet

You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the​ box?
What is the decimal expansion for 12
2
3​?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me

Answers

Answer:

D is the right choice and no you cannot fit the pizza inside the box.

Step-by-step explanation:

D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.

Answer:

I believe the answer is D.

Step-by-step explanation:

GOOGLE

Hi! Can anyone please give me the sale prices step by step?

I am still not sure how to answer this one. I'm asking because my dad can get angry with my grades (F's and D's) and this is 7th grade if you ask :''D

Hi! Can anyone please give me the sale prices step by step? I am still not sure how to answer this one.

Answers

Answer: 6

Simple Explanation:

To find 75% of 8, just multiply 8 by 0.75 (which is the same as 75%).

8 x 0.75 = 6

The correct answer is 2$

PLEASE HURRY ILL MARK BRAINEST

PLEASE HURRY ILL MARK BRAINEST

Answers

answer: 7

it’s asking for the square root, meaning what number can multiply by itself to equal 49.

for this I would just start guessing and then you’ll eventually get it.

a guess could be 6*6, which is 36

meaning that it is higher, so let’s check 7.

7*7 equals 49

so, the answer is 7

I know another person already answered but I hope this explanation helps :)
7•7=49 so the answer is 7
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