Mathematics Middle School

Simplify the expressions by combining like terms

10r - 5r + 3r - 8r

Answers

Answer 1

Answer:

0

Step-by-step explanation:

Combine like terms, perform the operations with the coefficients of the variable, then write the variable.

10r - 5r + 3r - 8r

= 5r + 3r - 8r

= 8r - 8r

= 0

Answer 2

Answer:

0

Step-by-step explanation:

10r-5r=5r

5r+3r=8r

8r-8r=0

Related Questions

Ms. Savage’s Art Club is making a mural on a wall in the Annex by reproducing a painting on a different scale. The original painting is 12 1/4 inches long and 6 inches wide. The mural will cover an entire wall that is 183.75 feet long and 90 feet wide. What will be the scale that relates the original painting to the mural?

Explain, please

Answers

Answer:

4 feet

Step-by-step explanation:

i think

answer this pls asap

Answers

Answer:

351.68 cm^2

Step-by-step explanation:

We need to find the area of the frame itself. the radius of the inner circle is 12, but the frame has a radius of 4. You add 12 and 4 and you get 16. The formula for area of a circle is A=πr^2. So A= 3.14 x16^2. Then you have A= 3.14x 256 and you get 803.84. But we only want the area of the frame, so you have to get the area of the inner circle and subtract. You get A= 3.14 x 12^2. 3.14x144 is 452.16. 803.84-452.16 is 351.68. Hope this helped. :)

Answer:

351.86cm²

Step-by-step explanation:

12+4=16

(total radius of the whole circle)

use the formula a= πr² to find area

area of the full circle = π*16² (256 π)

256π - area of the smaller circle

256π -  π*12²

256 π - 144 π = 112πcm² or 351.86cm² (to 2dp)

Hope this helps!!

ㅤpoint c and point d are plotted on the graph. plot points a and b to form rectangle abdc with an area of 36 square units. plot point e at (2, 4).

Answers

Answer:

A:(2,2)  B: (-4,2)

Step-by-step explanation:

A = (2, 2) | B = (-4, 2)

The scale factor from rectangle Y to rectangle Z is 2. Which statement is true?

A) The area of rectangle Z is twice the area of rectangle Y.

B) The area of rectangle Z is half the area of rectangle Y.

C) The sides of rectangle Z are twice as long as the sides of rectangle Y.

D) The angles of rectangle Z are twice as big as the angles of rectangle Y.

Answers

Answer:

Answer is C not A

A school raised a total of $1,648 to purchase new books. The money raised will be shared equally among 8 different classrooms. What is the total amount of money each classroom will receive?

Answers

Answer:

$206

Step-by-step explanation:

1,648  ÷ 8 = 206

1,648 divided by 8 =206

Solve each of the following equations. Show its solution set on a number line. Check your answers. 2x-3=2

Answers

Answer:

x - 2.5

Step-by-step explanation:

2x -3 = 2

2x = 5

x = 2.5

Hope this helps!

The above step by step is correct and here it is on the number line

I NEED THIS ASAP I'LL GIVE BRAINLIEST

Marina simplified the expression 4x + 5(–4x – b) – (x – 2) to be –17x – 8.

What was the value of b?


A. -6

B. -2

C. 2

D. 10

Answers

Answer:

C.)

Step-by-step explanation:

4x -20x -5b -x +2=-17x -8

-17x-5b+2=- 17x-8

+17x +17x

-5b +2= -8

-2 -2

-5b = -10

b= 2

hope this helps.

The answer is : C. 2

PLS HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

50

Step-by-step explanation:

The chooses are is and is not plz help

Answers

Answer:

Have a good day

Step-by-step explanation:

I don't know the chooses so how do I tell you the answer?

PLEASE HURRY I WILL GIVE BRAINLEIST

6x−7=2x+13

Rent-A-Tent rents party tents for a flat fee of $365 plus $125 a day. Capital Rentals rents party tents for a flat fee of $250 plus $175 a day. Delia wrote the following equation to find the number of days for which the total cost charged by the two companies would be the same.

365x+125=250x+175
Find and explain the error in Delia’s work. Then write the correct equation.


2x+14=4x−6

Ten less than 3 times a number is the same as the number plus 4.
Six times a number plus 4 is the same as the number minus 11.
the product of 3 and a number minus 10 is the same as four times the number
the sum of a number and 6 is the same as the number times 11.

.Shawn’s Rental’s charges $27.50 per hour to rent a surfboard and a wetsuit. Darla’s Surf Shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit. Write and solve an equation to determine the rental period in hours for which the charges for Shawn’s Rentals will be the same as the charges for Darla’s Surf Shop. Explain the steps of your solution.

Answers

Oh wow thats a lot so lets just do speed round:
1. x=5
2. Delia mixed up the flat fees with the daily fees. The equation should be 125x+365=175x+250
3. x=10
4. 3x-10=x+4
5. 6x+4=x-11
6. 3x-10=4x
7. x+6=11x
8. 27.5x=23.25x+17
(solving)
4.25x=17
x=4

If every side of an octagon is 6 inches, what is the perimeter?

Answers

48 inches is the answer

HEY YOU GUYSSS. I need help asap, I'm doing an extra credit assignment for math and I need to know the formula for any of these questions. THANKS

Answers

Answer:

1) S

2) M

3) I

4) E

5) A

6) L

thats what i got but i dont know y it isnt a proper word.

Answer:

1) S

2) M

3) I

4) E

5) A

6) L

Step-by-step explanation:

What is the answer to this problem, and explain it please!

Answers

The answer is D. The value cannot be determined
The answer to this question would be D) The value cannot be determined from the information given. This is because we cannot divide x and y. If this question was 8x/2x then we would be able to determine the answer, but we cannot since the denominator is a y.

PLEASE HELP. In the figure below, is there a dilation D that would map figure PQRS to figure P’Q’R’S’?

Explain in terms of scale factor and coordinates of corresponding points.

Answers

Hihihihihihihihihihi
you can use the app math papa or photomath if you need help with the graphing

plz help me due in 30min

Answers

Answer:

$2.20

Step-by-step explanation:

$39.80/4= $9.95 per ticket

$46.50/6= $7.75 per ticket

$9.95-$7.75= $2.20 as your difference

I think this is right, I hope I helped!

2.20 [•_•] Bc yeahhhh

Can someone plssss help?

Answers

Answer:

-3.333 so answer A is right

Step-by-step explanation:

Answer:

the answer is: A.

Step-by-step explanation:

also can I please have brainliest

7x + 9 = 58 i need all the steps

Answers

Answer:

Step-by-step explanation:

7x + 9 = 58

     -9    -9      Subtract 9 from both sides

7x = 49

/7     /7           Divide both sides by 7

x = 7 (this is an apporximation)

Answer:

7

Step-by-step explanation:

1st you need to subtract 9 from both sides like this: 7x+9-9=58-9. and you'll get 7x=49. Then, divide by 7 on both sides like this: 7x/7=49/7. and you'll get x=7.

Write the equation of the line in slope-intercept form using y=mx+b​

Answers

-1/3x-7=y
Slope is equal to rise over run and b is where it touches the y axis
y= -2x -7 hope this helps!

Jeff bought a 5-gallon bucket of paint. He
used 1.25 gallons to paint his bedroom, then
he used two-thirds of the remaining paint for
his living room. How many gallons of paint
did he use to paint his living room?
of

Explain you answer!!

Answers

Answer:

2.5

Step-by-step explanation:

5-1.25= 3.75

two-thirds of 3.75 is 2.5

It’s 2.5 ____________

Please give a full explanation and answer on this

Answers

I think it’s Idek I’m dum

The inequality x ≥ 25 can be used to represent the distance an athlete runs each week, where x is the distance in miles.
Which of these statements best describe the distance run by the athlete each week?

1. The distance is more than 25 miles.
2.The distance is no more than 25 miles.
3.The distance is at least 25 miles.
4.The distance is less than 25 miles.

Answers

Answer: 3

Step-by-step explanation:

because  that symbol means equal to or greater than/ equal to or less than depending which way its facing.

The answer is 3 as the symbol represents more than equal to meaning it can be more or equal to 25

A sailboat and catamaran are in a race to see who can sail across the Atlantic ocean the fastest..

.The sailboat covers a distance of 3240 miles in 8 days
.The catamaran covered a distance of 4020 miles in 10 days
If the sailboat is able to maintain a constant rate for 10 days, how many more miles would they have traveled than the catamaran?

Answers

Answer:

The sailboat would cover 30 more miles than the catamaran.

Step-by-step explanation:

To find how many miles the sailboat goes in 1 day (unit rate) you divide 3240/8 that gives you 405 miles in one day. Multiply that by 2 to get 810 miles in two days. Add 810+3240=4050. That shows that in 10 days the sailboat would travel 4,050 miles which is 30 miles more than the catamaran.

EXPERT HELP I'LL GIVE BRAINLIEST:

Answers

Answer:

where's the question???

I don’t see any image or problem to solve lol

Simplify the expressions by combining like terms

-4f - 9 - f + 15

Answers

Answer:

-5f    +6

Step-by-step explanation:

-4f - 9 - f + 15

Combine like terms

-4f -f    -9 +15

-5f    +6

Answer:

-5f+6

Step-by-step explanation:

as we add like terms -4f+(-f)=-5f

-9+15=6

hhhhhhheeeeeeeeeeeelllllllllllllllppppppppppppppppp

Answers

Answer:d

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The "sum" of two numbers is: A the result when both numbers are added together B the result when the first number is subtracted from the second number C the result when the first number is multiplied by the second number D the result when the first number is divided by the second number

Answers

Answer:

A the result when both numbers are added together

The sum of two numbers is A

Billy used 6 centimeters of tape to wrap 3 presents. How many presents did Billy wrap if he used 32 centimeters of tape? Assume the relationship is directly proportional.

Answers

He wrapped 16 presents.

I don't know I'm doing something else

ANSWER PLSSSSSSSSSSSSSSS SOMEONE

Answers

The answer is A. Cause it’s the only one the says mi per hour

Which models represent the sum?


1.1 + 0.6


Select each correct answer.

Answers

It should be the number line
Sorry if it’s wrong :)

please help me on this review of inequalities assignment!

Answers

Answer:

3:      x_> 16     4: x _>100 5: x>3    6:  x_< 200  

Step-by-step explanation:

I did this sheet.

Other Questions
Find the circumference of a circle rounded to the nearest tenth with adiameter of 4 inches How did Genghis Khan grow his military to over one hundred thousand soldiers? He forced farmers to become soldiers. He used his family to find more soldiers. He used enslaved people as soldiers. He shared his wealth with his soldiers. Which characteristics do hookworms and tapeworms share? Check all that apply. They are types of roundworms.They are parasitic.They have a digestive system.They cause diseases in humans.They have nerve cells.They can be used to treat illnesses. How can you use your knowledge about a topic?You can figure out what else you would like to know.You can find out what you already know.You can look through your notes to find keywords for your search.All of these can help you as you plan your research. Can yall help me ??? Identify the sentence that rewrites the given sentence using pronouns. 17. Te voy a repetir el mensaje.Group of answer choicesTe la voy a repetir.Voy a repetrtelo.Voy a repetir te lo. Explain mendel's experiment with peas on inheritence of characters considering only one visible contrasting character.Ples answer in making points, it is for 5 marks. Where does a clinical trial usually take place?O A. In a hospitalB. In a test tubec. In a placeboD. In a petri dish Cost pools are: A. costs that are accumulated before being allocated to cost objects on some common basis. B. costs that are relevant to decision-making but irrelevant to financial reporting. C. product costs that are assigned to cost objects using direct labor or machine hours. D. accounts in the product life cycle from research and development to customer service. what is 5.520.25 explain 2.4State TWO ways in which stress could impact negatively on student'sperformance at College or university.(2 x 2) (4) slope of (0.2,-0.9) (0.5,-0.9) how do i solve this and get the answer Bramble Corp. has $3960000 of 9% convertible bonds outstanding. Each $1,000 bond is convertible into 30 shares of $30 par value common stock. The bonds pay interest on January 31 and July 31. On July 31, 2021, the holders of $1250000 bonds exercised the conversion privilege. On that date the market price of the bonds was 106 and the market price of the common stock was $37. The total unamortized bond premium at the date of conversion was $289000. Bramble should record, as a result of this conversion, a PLEASE HELP URGENT WILL GIVE BRAINLIEST What are some of the reasons people work? a. To define themselves b. To measure self-worth c. To have a sense of security d. All of the above Please help me (math)Is it A and B or just A? Im 99% sure it is not C :) write and explain any three sector of development potentialities in Nepal What is 4 1/2 + -17 1/4 it doesnt have to be simplify xo HELP ASAPThe perimeter of a semicircle is 27.756 inches. What is the semicircle's radius? If Mr. Phillips bought 1 3/4 pounds of raspberries, who bought more fruit, Ms. Winn or Mr. Phillips?