Mathematics Middle School

Combine the like terms by adding or subtracting
-7m-2m+18+4

Answers

Answer 1

Answer:

-9m + 22

Step-by-step explanation:

.............

Answer 2

Answer:

-9m+22

Step-by-step explanation:

-7m-2m+18+4

-9m+22

Related Questions

I will give the brainliest crown to whoever gets it right!
A student wrote a list of six consecutive odd integers. If the sum of the fourth integer and sixth integer is 250, what is the third integer?

Answers

Answer:

71

Step-by-step explanation:

x + (x+2) + (x+4) + (x+6) + (x+8) + (x+10) = 456

6x + 30 = 456

add -30 to each side

6x = 426

divide each side by 6

x = 71

Answer:

500.

Step-by-step explanation:

Which decimal number is the same as 2/9?

A. 0.2 with the line above it

B. 0.2

C. 0.22

D. 0.20

Answers

A , because the line above the 2 means which is caused by the division of 9
A because 2 divided by 9 = 0.2 repeating and the line above it is represented as repeating

The function y = 0.99x represents the price y for x in-game power boosts. Which of the following is a reasonable domain for this function?
A. All real numbers B. All integers
C. All whole numbers D. All positive whole numbers

Answers

The answe is B.All integers

Justin is going to the school dance. He went to the mall and bought two new shirts for $21.99 each and a new pair of dress shoes for $45.59. Which two operations would be used in order to figure out how much he spent at the store?

A. multiply and add

B. add and subtract

C. multiply and subtract

D. divide and add

Answers

Answer:

A- Multiplication and Addition.

Step-by-step explanation:

Two shirts for $21.99 each, you'd need to use multiplication to find that out.

$45.59 and $21.99 (2x), you'd need to use addition to find out that total.

The answer is A: multiply an add

Rules for Dividing Two Integers:
1. A quotient is negative if the divisor and the dividend have _______ signs.
2. A quotient is positive if the divisor and the dividend have _______ signs.





1) Fill in the blanks for the rules, respectively.
A) opposite, the same
B) the same, opposite
C) opposite, opposite
D) the same, the same



2) If p and q are integers, which expression is NOT equal to the others?
A) -p/q
B) -p/q
C) p/-q
D) -p/-q

(A and B aren't the same)

Answers

Answer:

1. C. Oppisite and Oppisite

2.D. the same and te same

Step-by-step explanation:

PLEASE HELP NOW!!!!!!!!!!!!!!!!! Rick is buying a $115 tennis racquet from a


sporting goods store. If the racquet is on sale


for 35% off and sales tax is 8%, how much will


he pay in total?

Answers

In total he pays $68.77

the answer is $68.77

PLEASE HELP....... I will give you the brainiest, give you a five star, a heart, and a friend request. PLEASE HELP.

Answers

Determine the side of the Lengths and you’d you’ll be good
Determine the side and lengths and you’ll be good.

Jackie followed these steps to evaluate the expression 15- (37+8) divided by 3.
37+8=45
45-15=30
30 divided by 3=10
Mark looks at Jackie's work and says she made a mistake. He says she should have divided by 3 before she subtracted.
Part A
Which student is correct?
???
Part B
Evaluate the expression.
???

Answers

Answer:

Nothing is wrong with the equation but the order of operations still applies.

PEMDAS ( Parenthesis, Exponents, Math/Division, Addition/Subtraction)

First do what's in the parenthesis then division then subtract that number from 15

Step-by-step explanation:

Answer:

I'm confused...

Step-by-step explanation: Sorry

Clare made a smoothie with 1 cup of yogurt, 3 tablespoons of peanut butter, 2 teaspoons of chocolate syrup, and 2 cups of crushed ice.

Kiran tried to double this recipe. He used 2 cups of yogurt, 6 tablespoons of peanut butter, 5 teaspoons of chocolate syrup, and 4 cups of crushed ice. He didn't think it tasted right. Describe how the flavor of Kiran's recipe compares to Clare's recipe.
How should Kiran change the quantities that he used so that his smoothie tastes just like Clare's?

Answers

Answer:

Step-by-step explanation:he needs to only add 4 teaspoons of chocolate syrup instead of 5 take make it taste like Clare's smoothie

he needs to put 4 cups of chocolate syrup instead of 5.

Amir has a $2 off coupon for his favorite sub shop. To get the deal, he must buy a 6” sandwich and chips, a soda, or a cookie. His favorite sub costs $5.50, and he can add chips for $0.75, a soda for $1.25, or a cookie for $1.50. If he really wants the soda, how much will his bill be?

Answers

His total would be $5.50

5.50+0.75+1.25= 7.50

7.50-2(the coupon) = $5.50 total

The total cost of the 6 sodas bill after applying the $2 off coupon will be $5.5.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

Amir has a $2 off coupon for his favorite sub shop. To get the deal, he must buy a 6” sandwich and chips, a soda, or a cookie. His favorite sub costs $5.50, and he can add chips for $0.75, a soda for $1.25, or a cookie for $1.50.

If he really wants the soda. Then the total cost of 6 sodas will be

⇒ 6 x $1.25

⇒ $7.5

Then the total cost of 6 sodas bill after applying the $2 off coupon will be

⇒ $7.5 - $2

⇒ $5.5

The total cost of the 6 sodas bill after applying the $2 off coupon will be $5.5.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Can someone please help me on this thx

Answers

Answer:

31

Step-by-step explanation:

because if k and m are equal then 31 is on one side so 31 must be on the other side

149 degrees because the straight angle equals 180 degrees so you subtract the known angle with the unknown which in total would equal 180 degrees

Write the word sentence as an equation. Then solve.

A number x divided by −9 is −16.

Equation:

Solution: x=

Answers

Answer:

Solution: X=144

Equation: x/(-9)= -16

Step-by-step explanation:

the / is divide

the first part of the word problem states that a number x is being divided by -9, x/-9 then it states that this equation equals -16 therefore,x/-9=-16.

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

x ÷ (-9) = -16

x = 144

The value of x is 144

What is an equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 4 = 7 is an equation.

2x8 + 4 ÷ 8 is an equation.

We have,

A number x divided by −9 is −16.

This can be written as,

x ÷ (-9) = -16

x/-9 = -16

-x/9 = -16

negative gets canceled.

x = 16 x 9

x = 144

Thus,

The value of x is 144

Learn more about equations here:

https://brainly.com/question/17194269

#SPJ2

Margaret gave the waitress $50 for 6 burgers. She received $9.80 in change. Each burger cost the same amount. How much was each burger?

Answers

Answer = $6.70
Explanation - you have to subtract 9.80 from 50 first which equals 40.2. You then have to divide 40.2 by 6 to figure out how much each burger cost, which equals 6.7. Therefore each burger cost a total of $6.7
$6.70
explanation - subtract $9.80 from the $50 she paid in total which leaves $40.2 and then you divide $40.2 by 6 and you get your answer, $6.70

Place the steps needed to solve the inequailty in the correct order.
-2(x-4) + 4x < 18

Answers

Answer:

X<5

Step-by-step explanation:

Step 1: Simplify both sides of the inequality.

2x+8<18

Step 2: Subtract 8 from both sides.

2x+8−8<18−8

2x<10

Step 3: Divide both sides by 2.

2x/2

<

10/2

So in conclusion  , x<5

Hoped I helped-

Sleepy~

answer is x < 5

steps:
-2(x-4)+4x<18
2x+8<18 (simplify both sides)
2x+8-8<18-8 (subtract 8 from both side)
2x <10
2x/2 < 10/2 (divide both sides by 2)

x<5

The net of a rectangular prism is shown below.


28624

What is the surface area of the rectangular prism?

Answers

Answer:

28

Step-by-step explanation:

Using a net to find the surface area of a rectangular prism

Finding the areas of each of the rectangles and squares of the net of a rectangular prism and adding up those areas gives the surface area or total surface area of the prism.

For example, if the length of one side of the cube 4 units then the area of one its face is 4 × 4 = 16 square units. From the net, we can see that there are six equal faces and so we get the total surface area is 6 × 16 = 96 square units.

Surface Area of a Rectangular Prism using Nets

A rectangular prism or cuboid is formed by folding a net as shown −

Cuboid

We can see from the net that there are two rectangles with dimensions 3 cm by 6 cm, two rectangles with dimensions 2 cm by 6 cm and two rectangles with dimensions 2 cm by 3 cm. The total surface area is then

2 × 3 × 6 + 2 × 2 × 6 + 2 × 2 × 3 = 72 cm2

Example 1:

Find the surface area of the given rectangular prism in square cm.

Rectangular Prism in Square cm

Solution

Step 1:

Using net, the surface area of a rectangular prism

= 2lw+wh+lh; l = 6 ; w = 5; h = 3

Step 2:

Surface area of given prism = 26×5+6×3+3×5

= 230+18+15

= 126 square cm

Example 2:

Find the surface area of the given rectangular prism in square cm.

Rectangular Prism Square cm

Solution

Step 1:

Using net, the surface area of a rectangular prism

= 2lw+wh+lh; l = 5; w = 6; h = 4

Step 2:

Surface area of given prism = 25×6+5×4+6×4

= 230+20+24

= 148 square cm

28 = area of trapezoid

Plz help me, it is due today, and I need all of it done. You get a thanks, 5 star, and brainliest, if it is right!!

You are in charge of a concession stand for a game at your school. The note from your teacher advisor is a little hard to read, but you think it says “Sell a hot dog and chips for $3, or sell four hot dogs and four bags of chips for $10.” The note didn’t say how much to sell an individual hot dog or an individual bag of chips for, so you need to figure that out.



1. Write a system of equations to represent this situation, and solve the system to find out how much each individual hot dog or bag of chips should cost. Did you have any problem solving it? If so, what was the problem, and what does it mean? Show all of your work.





2. You call your teacher and find out that the second part of the note should have said “sell four hot dogs and two bags of chips for $10.” What does that do for your system of equations now? With this new information, how much should each item cost? Again, show all of your work.



3. What other items would you like to sell at the concession stand to make money for your club? How much would you charge for those?

Answers

Very easy answer. I don’t want to give it away but all you have to do is use division and minus to find you answer xx good luck!
hint hint: 3.50 ➗ 2 = ? & $5 - $1.50 = ?
That’s your answer !

Bob sets the price of the plants according to their height in inches. A plant that is 9.5 inches high costs $2.28 in his store. What is the price per inch of a plant? Show your calculation.What is the price of a plant that is 5.5 inches high? Show your calculation.

Answers

Answer:2.5

Step-by-step explanation:

Answer:

0.24 is the first one, I can't seem to figure out the second question though I'm sorry :(

Step-by-step explanation:

to find out how much it is per inch we have to divide the price by the amount

2.28 divided by 9.5 = 0.24

so $0.24 or 24 cents is the price per inch of a plant

Which expression would the model be most helpful in solving?

An area model has 5 shaded parts and 1 unshaded part. The shaded part is labeled StartFraction 5 Over 6 EndFraction.
One-sixth divided by StartFraction 5 Over 6 EndFraction
StartFraction 5 Over 6 EndFraction divided by one-sixth
6 divided by one-sixth
6 divided by StartFraction 5 Over 6 EndFraction

Answers

Answer:

StartFraction 5 Over 6 EndFraction divided by one-sixth

Step-by-step explanation:she was right

Answer:

5/6 divided by 1/6

Step-by-step explanation:

I need more help please

Answers

Answer:

3, 6, 7, 9

Step-by-step explanation:

1/3 = 0.33...

1/6 = 0.1666...

1/7 = 0.1428571428...

and 1/9 = 0.11...

The answers are indeed 3, 7, 9

help meh please i want help

Answers

12

because the greatest common factor (gcf) of the two numbers 36 and 24 is 12. Hence, if he makes 12 packages, they would be identical.

Help me w/ math pleaseeeeeeeeeeeeeeee

Answers

8.7-10.3=1.6 you add the 2 and you give one tenth to the ones place and subtract to get your answer

Answer:

2.6 kilograms

Step-by-step explanation:

Tebow weighs 3.2 and Tiger weighs 4.5, so adding those numbers together...

3.2 + 4.5 = 7.7

-3 + 4 = 7      

-0.2  + 0.5 = 0.7  

-7 + 0.7 = 7.7

Bear weighs 10.3 kilograms.

10.3 - 7.7 = 2.6

10 - 7 = 3

Now you had the 0.3 to the whole 3.

3.3 - 0.7 = 2.6

(Think of each number as a group of 10, and then subtract the decimal from it.)

Describe how to estimate a non-perfect square root to the hundredths place without using a calculator.

Answers

Answer:

Step-by-step explanation:

pick an estimate of the square root. Exampl, if we find sqrt (squade root) of 5, if we pick 2. Divide the number by the estimat, example, 5/2 = 2.5

Answer:First, estimate between two whole numbers by finding the perfect squares nearest to the target number. Next, identify which value the non-perfect square root is closer to, then use the iterative process to approximate further to the tenths place, and then further to the hundredths place.

Step-by-step explanation:thats what i put

Solve the equation.

8=−2/5c
c=

Answers

Answer:

c = -20

Step-by-step explanation:

just cross multiply, then simplify

8 = -2/5c

8(5) = -2c

c = 40/-2

c = -20

Answer:

c= -20

Step-by-step explanation:

8= -2/5c

Step 1:

-2/5c = 8

step 2:

5/-2* -2/5c = 5/-2 *8

c= -20

I will be marking brainliest!.....So i have 10 math questions whoever gets it right will be marked at brainliest. If your answer is not applicable with the question it will be reported and removed and you will lose points :) First Question!!

Answers

Answer:

C

Step-by-step explanation:

there are six spots, which the arrow will land on only one, making it 1/6

Answer: 1/6~0.17~17%

Step-by-step explanation: There are 6 thing on the spinner and they each take up 1/6 of the spinner and 1/6 roughly = 0.17 witch =17%

⚠️HELP ME!!!⚠️
ITS URGENT (NO FUNNY ANSWERS)

Answers

Answer:

They will buy 4 hotdogs and 3 drinks

Step-by-step explanation:

4 hotdogs 3 drinks I’m am Greussibg

I think this is the last one then ill be in the 70's
so help please!

Answers

Answer: The answer is 7:21

7 goes into 21 three times
1 = 7
3 = 21

There ya go

Answer:

10:30

Step-by-step explanation:

10:30 is equivalent to 1:3 because its just multiplied by 10

PLZZZ HELP ME OUT THIS DUE RIGHT NOW AND I FREAKING OUT PLEASE HELP ME P.S YOU HAVE WRITE ANSWERS FOR ALL OF THEM

Task 1 – Operations on the Number Line
(Variation of the above task)
A number line is shown below. The numbers 0 and 1are marked on the line, as are two other numbers a and b.

For each of the following expressions determine if the answer would be positive, negative, or zero. For each one PROVE HOW YOU KNOW.

1. a−1

Answer:
Explanation:








2. a−2

Answer:
Explanation:







3. b−1

Answer:
Explanation:









4. -b−b

Answer:
Explanation:









5. a−b
Answer:
Explanation:








6. ab+1
Answer:
Explanation:








7. b− a
Answer:
Explanation:








8. a a-b x b

Answer:
Explanation:

Answers

Answer:

a is greater than 1, so a−1 is positive.

Step-by-step explanation:

Jenna multiplied four numbers together and then divided by -2. The result was a positive value.

Which of the following statements MUST be true?

Answers

Answer:

An odd number of factors were negative

Step-by-step explanation:

EXAMPLE: -3 × 4 × 8 × 2 = -192  then -192 ÷ -2 = 96

An odd number of the factors were negative
Example 2 x -5 x -7 x -6 = -420

Desiree went to the store to buy potatoes. She noticed a sign that said that she could get 3 for $1.05. How much would it cost her to buy 8 potatoes?

Answers

Answer:

$2.80

Step-by-step explanation:

1.05/3 =0.35 price per unit

0.35*8

$2.80

Answer:

$2.35

Step-by-step explanation:

you would add the 1.05 three times and then divide the answer by 3.and then you would get 2.35

What is the equation of this line?

y=2/3x
y=3/2x
y=−2/3x
y=−3/2x

Answers

Answer:

i would say y=-2/3x

Step-by-step explanation:

I would say that y=3/2x I think
Other Questions
geometry help please, simple math problem. will mark you brainliest You have a fair, well-shuffled deck of 52 cards. It consists of four suits. The suits are clubs, diamonds, hearts and spades. There are 13 cards in each suit consisting of 2, 3, 4, 5, 6, 7, 8, 9, 10, J (jack), Q (queen), K (king) and A (ace) of that suit. An experiment consists of drawing a card followed by the roll of a dice. a. Let A be the event that a H (heart) card is picked first, followed by landing a 5 on a roll of a dice. Find P(A). (Round to three decimal places) Ayala Architects incorporated as licensed architects on April 1, 2017. During the first month of the operation of the business, these events and transactions occurred:Apr. 1 Stockholders invested $18,270 cash in exchange for common stock of the corporation.1 Hired a secretary-receptionist at a salary of $381 per week, payable monthly.2 Paid office rent for the month $914.3 Purchased architectural supplies on account from Burmingham Company $1,320.10 Completed blueprints on a carport and billed client $1,929 for services.11 Received $711 cash advance from M. Jason to design a new home.20 Received $2,842 cash for services completed and delivered to S. Melvin.30 Paid secretary-receptionist for the month $1,524.30 Paid $305 to Burmingham Company for accounts payable due.Journalize the transactions.Post to the ledger T-accounts. (Post entries in the order of journal entries presented in the question.)Prepare a trial balance on April 30, 2017. Explain the statement, "If we didn'thave government, we'd invent it" andsupport your explanation withevidence. in a plant,root cells are different from leaf cells because they have no ? When water boils and becomes steam at around 100 degrees Celsius, this is an example of aA. Physical changeB. Chemical change C. Chemical reactionD. Covalent bond? One angle of an isosceles triangle measures 80. Which other angles could be in that isosceles triangle? IF SHAPE I IS SIMILAR TO SHALE II AND SHAPE II IS SIMILAR TO SHAPE III WHAT DOES THAT MEAN FOR SHAPE 1 AND SHAPE III If the marked price of an article is Rs.x, discount amount isRs. y and the VAT amount is Rs. z, Calculate the sellingprice of the article including VAT. AB and CD are parallel lines.Work out the size of x. how does odilia respond during the attempts to escape On January 2, 2015, Martinez Corporation issued $1,700,000 of 10% bonds at 97 due December 31, 2024. Interest on the bonds is payable annually each December 31. The discount on the bonds is also being amortized on a straight-line basis over the 10 years. (Straight-line is not materially different in effect from the preferable "interest method.")The bonds are callable at 102 (i.e., at 102% of face amount), and on January 2, 2020, Martinez called $1,020,000 face amount of the bonds and redeemed them.Required:Compute the amount of loss, if any, to be recognized by Martinez as a result of retiring the $1,020,000 of bonds in 2020. what is circulatory role and funcation Please help this is in pre algebra What is the equation of the line that has a slope of -7 and passes through the point (4, 8)? Which particles can be found in the nucleus of an atom?-protons and neutrons-protons and electrons-alpha particles-neutrons and electrons Simplify:4(2a+3)+5(a+3) what is one way economy of the south changed as a result of reconstruction? Answers: There were fewer banks to help freedmen recover. More railroads were built in order to transport goods. Many farms shut down and turned into factories Immigrants took most of the farming jobs Verbal and nonverbal communication often work together to conveya. messagesb. cultureC. languaged. multiple channels which type of data would a geologist most likely collect 1. the range of an aquatic organism 2. the effect of disease on a population of trees 3. the earthquake potential in a specific area 4. the rate of deforestation in a specific area