Mathematics Middle School

Simplify the expression by combining like terms put each expression in its simplest form. 1. 5x^2-2xy+3y^2-4yx+3x-4y^2-5xy+2x-y

Answers

Answer 1
5x^2-7xy-2y^2-4yx+3x+2x
Answer 2
5x^2 - 2xy + 3y^2 - 4xy + 3x - 4y^2 - 5xy + 2x - y = 5x^2 - (2xy + 4xy + 5xy) + (3y^2 - 4y^2) + (3x + 2x) - y = 5x^2 - 11xy - y^2 + 5x - y

Related Questions

Complete both Part A and Part B.

Part A:
Jason buys a pair of pants for $28.97, a top for $12.82 and a scarf for $9.18. He has a gift card worth $75. If the sales tax on the purchase is $3.19, what is the total of his purchase?

Part B:
Will he have enough money left to buy a hat for $27.15?
Explain your answer.

Answers

Answer:

Explanation:

Part A:

Total purchase = 28.97 + 12.82 + 9.18 + 3.19 = 54.16$

Part B:

75$ - (54.16 + 27.15) = 75 - 81.31 = -6.31

Therefore, he won’t have enough money to buy the hat.
Part a: When you add them all together you will get $54.16

Part b: no he won’t.

please help me with this

Answers

The mistake was the first line, they didn’t multiply the two
It is the third one cause he wast supposed to do the opposite

Answer the question in the pic pls. Don’t answer unless you are sure if your answer

Answers

Answer:

its 20

Step-by-step explanation:

20 because 10+10=20. it’s a pattern happening. in each circle you are double the first number and then doubling the second number to get your final answer.

Is –862 ÷ 1 positive or negative?

Answers

Answer:

Negative

Step-by-step explanation:

Answer:

It's negative

Step-by-step explanation:

–862 ÷ 1

= -862

and even remember that if a negative number is divided by positive the answer will be always negative

same applies here

3/2 = 5d - 1/2

solve for d

​

Answers

Answer:

D = 2/5 or 0.4

Step-by-step explanation:

3/2 = 5d - 1/2

move the terms

3/2 - 5d = -1/2

calculate the difference

-5d = -2

divide both sides by -5

2 = 2/5

Answer

3/2 = 5d - 1/2
+1/2 +1/2
2=5d
divide both sides by 5

D = 2/5

I beg you, HELP MEEEE!!!!! One spinner is divided into four equal sections numbered 1 to 4. A second spinner is divided into five equal sections numbered 5 to 9. How many total outcomes are there if both spinners are spun?

13
9
20
36

Answers

Answer:

9 is the correct answer

The answer is 9 total outcomes

find the exact coordinates of X on segment JK that is 1/3 the distance from j to k. J (-1,4)​ K(5,-3)

Answers

Answer:

ee

Step-by-step explanation:

e

... fhhhriirnfiijrifjbfufjfbfijffjdudj

I WILL MARK AS BRAINLIEST! Graph each coordinate pair on the graph and then indicate which quadrant or axis the point lies on.

Answers

Answer:

3 quadrant

3 quadrant

2 quadrant

2 quadrant

1 quadrant

4 quadrant

4 quadrant

3 quadrant

3 quadrant
3 quadrant
2 quadrant
2 quadrant
1 quadrant
4 quadrant
4 quadrant
3 quadrant

Please refrain from answering just for the points

Answers

the answer is even number.

it’s even i can’t rly explain why but they are even sorry can’t rly help

Help please
......................

Answers

1. 35x + 0.15y
=3500x + 15y [multiplying the equation by 100]
= 700x + 3y [dividing the equation by 5]

2. Let x be an even integer
x + (x+2) + (x+2+2)
x+x+2+x+4
3x+6

3. 1/5*(r+7) - 9s
(r+7)/5 - 9s

4. x=cows
y= goats + sheep

x= (y+140)/2

  35x + 0.15y

=3500x + 15y

= 700x + 3y

2. x + (x+2) + (x+2+2)  ----> x+x+2+x+4 ----->3x+6

3. 1/5*(r+7) - 9s -----> (r+7)/5 - 9s

4. x=cows and y= sheep+goats

Answer/x= (y+140)/2

Please help im giving 25 points

Answers

Answer:

4/15

Step-by-step explanation:

[tex]6\frac{3}{5} -6\frac{1}{3} \\\\\frac{33}{5} -\frac{19}{3} \\\\\frac{99-95}{15} =\frac{4}{15}[/tex]

=
4/15
(Decimal: 0.266667)

Step by step: =33/5 - 6 1/3
=33/5 - 19/3
=33/5 + -19/3
=4/15
=4/15

7+ ? ×5+9=66 what is the answer

Answers

Answer:

? = 10

Step-by-step explanation:

7 + ? × 5 + 9 = 66

Treat ? as a variable, and solve for ?.

5? + 16 = 66

5? = 50

? = 50/5

? = 10

It should be 10 in place of the x

Jeremy wants to make cookies. He makes some cookies, then eats 5 of them. He splits
the remaining amount into 3 equal portions and decides to give one portion to his mom
and one to his dad, and keep the last one to himself. He then makes 10 more cookies for
himself, before counting his cookies to find he has 17. How many cookies did Jeremy
make at the beginning?

Answers

Answer:

The answer is 36 cookies.

Step-by-step explanation:

Jermey made 24 cookies

number 27 pls snsinusnisbihwbhwbihbsyigsyuvwuhbwuhbwhi sorry i have to write 20 characters

Answers

(1, 2.50)
(2, 4.50)
(5, 10.50)
(8, 16.50)
Domain is : 1, 2, 5, 8
Range is : 2.50, 4.50, 10.50, 16.50
Isnkekdoekeie it’s okay

I will try to give braniliest
Can the following question be considered a statistical question, and why?

For how many hours does each student at Bryan Middle School sleep? (1 point)

Yes, it has a single answer
No, it does not specify the population
Yes, it anticipates enough variability in responses
No, it does not anticipate enough variability in responses

Answers

Answer:

the answer is C :)

Step-by-step explanation:

The correct answer is c

I WILL MARK BRAINLIEST! Solve for X and Y

Answers

See the images. I hope it will help you.

I hope this will help you

Helppp me pleaseeeee

Answers

Answer:

485 × [tex]10^{-10}[/tex]

Step-by-step explanation:

first we need to convert the number to fraction

0.0000000485

[tex]\frac{0.0000000485}{10000000000}[/tex]

it will be

[tex]\frac{485}{10000000000}[/tex]

or can be written as

[tex]\frac{485}{10^{10} }[/tex]

now we need to convert it to scientific notation

485 × [tex]10^{-10}[/tex]

All you have to do is multiple your answer to find the prouduct

can anyone help me with this ?

Answers

Answer:

81

Step-by-step explanation:

it can be expressed as a product of two smaller numbers 9×9

It’s 81 gurl
Bc a composite number is A composite number is a positive integer that can be formed by multiplying two smaller positive integers.

rewrite -6 - (-3) using addition

Answers

Answer:

-6+3 because you can distribute the negative sign into the parenthesis and make it a positive.

Answer:

So the answer would be -6+3

Step-by-step explanation:

Here's why:

So think of this strategy when working with these problems

Draw the line connect the sign

This means to convert the -(- into a plus sign, which makes these problems way easier

So that's why the answer is -6+3

Answer = -3

Hope this helps!

Help me wit dis come on

Answers

Answer:

3x10^-3

Step-by-step explanation:

The equation 4.05p+14.40=4.50(p+3) represents the number p of pounds of peanuts you need to make trail mix. How many pounds of peanuts do you need for the trail mix?

Answers

Answer: p=2

Step-by-step explanation:

4.05p+14.40=4.50p+13.50

4.50p-4.50p=13.50-14.40

-0.45p=-0.90

p=-90/-0.45

p=2

.'. 2 pounds are needed to trail milk

22 pounds es lo q tienes q poner

1. What is the actual distance around the garden? Explain your reasoning.

2. It took Clare 30 minutes to walk around the garden at a constant speed. At what speed was she walking? Explain your reasoning.

Answers

First find the number of ft around the garden and if it took Clare 30 min to walk the entire distance divide your previous answer by 30 so you can see how many ft per minute she was walking
Clair would need to be walking fast and the constant speed is about 2 feet per 3 seconds

Which of the following statements is true?
a) Cube root of a perfect cube number ending with 8 ends with 8.
b) Cuberootofaperfectcubenumberendingwith6endswith2.
c) Cube root of a perfect cube number ending with three zeroes ends
with one zero.
d) Cube root of a negative number may be positive.

Answers

Answer:

b is the correct answer

Step-by-step explanation:

(ii) A perfect cube does not end with two zeros. (iii) If square of a number ends with 5, then its cube ends with 25. (iv) There is no perfect cube which ends with 8.Cube roots of negative numbers are always negative.

a never ending decimal is which type of number?

a. Rational
b. irrational
c. none of these

Answers

Answer:

B: Irrational

Step-by-step explanation:

I did this test to i promise its right.

irrational. if it were rational it would end :)

Andrea invites some of her relatives to a party.
She invites: 12 cousins
6 aunts
4 brothers
2 sisters
what fraction are aunts and sisters

Answers

Answer:

Aunts = 6/24 => 3/12 => 1/4

Sisters = 2/24 => 1/12

hope that helps uh..☺

Answer:

1/2  is the answer

The Mediterranean climate is one of the:

polar climates
low-latitude climates
maritime climates
mid-latitude climates

Answers

its one of the maritime climates

Maritime climates!! Is the correct answer

Josh keeps his socks and shirts in different drawers. He has twelve white, five blue, and seven black socks. He also has three white, five black, and two grey shirts. He pulled out a sock and a shirt in the dark.



What are the chances that he will get a black sock and a grey shirt?

Answers

Answer:

P(blk sk AND gy shr)=P(blk sk)*P(gy shr)=7 /578

P(gy shr)=2/34

P(blk sk)=7/34

blk=Black

sk=Sock

gy=Grey

shr=Shirt

89% chance of pulling out a black sock and a grey shirt

(5x+x^4) - (3x^4+4x)
pls help i dont know how to do it with the minus in the middle

Answers

5x + x^4 - (+3x^4) - (+4x)

5x + x^4 - 3x^4 - 4x

x - 2x^4

Jdjdjdjdjdjdjdjekkdid

Answer:

-

Step-by-step explanation:

the minus in the middle of the numbers is when you get the answers in the parenthesis you minus the two answers you got

I WILL MARK AS BRAINLIEST! Solve for X and Y

Answers

Answer:

1.

a) 40  b) 8  c) 27  2/3  d) 4

2.

a) 93  b) -95  c) -87  d) -81

Answer:

Move all terms that don't contain x  to the right side and solve.

Question 5

Don't forget to replace all y's with a -8!

a) x = 32

b) x = 12

c) x = 33

d) Exact Form:  x  =  36/5

Decimal Form:  x  =  7.2

Mixed Number Form:  x  =  7  1/5

Question 6

Don't forget to replace all x's with a 0!

a) y = 93

b) y = -95

c) y = -87

d) y = -81

I hope this answer was helpful!

Martin is wrapping a present and cut a piece of ribbon that is
79
100
of a meter long. Select the decimal that represents the same length.

0.079 m

790 m

0.79 m

79 m

7.9 m

Answers

the answer us 0.79 m

Answer:

.79

Step-by-step explanation:

79/100 or .79 m

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