Mathematics Middle School

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Answers

Answer 1

Answer:

6

7

3

52.5

Step-by-step explanation:

Related Questions

What is the founder of 100 and 2,009

Answers

Answer:

im kinda confused on what your asking but if you wanna know who then Milton Sirotta and our number system comes from Aryabhata

Step-by-step explanation:

Yea I’m confused what u talking bout give me more details

What property is being shown? 3 + x + b= 3 + b + x
a. Associative
b. Commutative
c. Symmetric

Answers

Answer:

B. Commutative

Step-by-step explanation:

Commutative The order in which the operands are taken does not affect their image under the operation.

I belive this is the answer!

Hope this Helps!! :))

Answer:

B. Commutative

Step-by-step explanation:

h + 86.43 = 531.79

h = ___________

Answers

h= 445.36
because you bring the 86.43 over to the 531.79. which would make 86.43 a negative number. so you subtract 531.79 by 86.43

Answer:

h=445.36

Step-by-step explanation:

Subtract both sides by 86.46

531.79 - 86.43 = 445.36

Check answer by plugging it back in

445.36 + 86.43 = 531.79

Which of these systems of equations would be best solved using the subtraction​ method?
I. 2x−7y+3y = 4
−6x−4y = −52
II. 2y = −5x+6x−5
y = 2x−6
III. −7x+3x+2y = 4
4x−6y = −52

Answers

Answer:

diagram a has a slope of 4

diagram b has a slope of 1/4

diagram c has a slope of -1/4

Step-by-step explanation:

have a great day :D

I ain’t got a clue but good luck in life and make sure you stay in school and stay safe brb

Can you help me plzzzzzzz

Answers

Answer:

A

Step-by-step explanation:

11^2 x 3.14 x 10 = 3799.4

Answer:

I believe it is A. 3799.4

Step-by-step explanation:

I used a formula from online and it gave me 3801.33 which is closet to A. 3799.4

Rose wants to buy a toy that costs $14. If she gives the cashier $20, which equation will tell you how much change Rose gets back?

A) x - 14 = 20
B) x + 14 = 20
C) x + 14 = -20
D) x - 14 = -20

Answers

Answer:

B) x + 14 = 20

Step-by-step explanation:

Jenny sent 640 texts in 8 days. At this rate, how many texts did she send in 3 days?

Answers

Answer:

240 texts

Step-by-step explanation:

[tex]\frac{640}{8} =\frac{x}{3} \\\\8x=1920\\x=240[/tex]

Answer:

240 texts

Step-by-step explanation:

First we need to find out how many texts in 1 day

640 divided by 8 is 80

80 times 3 is 240

Please mark brainliest :D

What is the angle of BGH?

Answers

The angel of BGH is 78
BGH is 78 because
2x+3x+50=180
5x+50=180
5x=130
X=26
26*3=78

Urgent! Please ANSWER!

After the first term in a sequence, the ratio of each term to the preceding term is r. If the first term is a, what is the third term?

Answers

Answer:

The third term would probably be ar² <3 sorry for that one person answering with no answer at all, They just did it for points, They greedy.

Step-by-step explanation:

PLZ I NEED HELP, will give BRAINS

Answers

Answer:

0% of 36: 0

100% of 36: 36

25% of 36: 9

75% of 36: 27

Step-by-step explanation:

0% of any number is 0.

100% is the same number.

To find 25% you can divide by 4.

To find 75% you can divide by 4 and multiple by 3.

25% = 1/4

75% = 3/4

I hope this is helpful :)

What is the circumference of a 12 inch diameter pizza answer in terms of pi

Answers

Answer: 37.69911 in. (Round if necessary)

Steps:
2πr
2·π·6 = 37.69911


all you need to do is multiply it by Pi and then the radius by 2 to be the circumference. around 37

Which of these systems of equations would be best solved using the subtraction​ method?
I. 2x−7y+3y = 4 −6x−4y = −52
II. 2y = −5x+6x−5 y = 2x−6
III. −7x+3x+2y = 4 4x−6y = −52

Answers

Answer:

Step-by-step explanation:

1. x+2y=6 or x=6-2y

3x-2y=2

3(6-2y)-2y=2

18-6y-2y=2

18-8y=2

-8y=-18+2

-8y=-16

y=-16/-8

y=2 ans.

x+2*2=6

x+4=6

x=6-4=2 ans.

Proof:

3*2-2*2=2

6-4=2

2=2

I leave the rest for you to practice with.

3. 4x+y=7

2x+5y=-1

 

5. 3x+2y=-2

6x-y=6

Solve the system using the elimination method. Show all your steps.

7. -3x+3y=3

3x+y=9 add.

---------------------------------

4y=12

y=12/4

y=3 ans.

3x+3=9

3x=9-3

3x=6

x=6/3

x=2 ans.

Proof:

-3*2+3*3=3

-6+9=3

3=3

I'll leave the rest for practice.

9. -5x+12y=20

x-2y=-6

11. 3x+2y=1

4x+ 6y= 7

Dr. Wong has a table of data in her veterinary office that shows the average lifespans and weights of several popular dog breeds. Alfonso made a scatterplot of these data for a math project.

Answer the questions to make predictions about the lifespan of a specific breed of dog.

1. Describe the association shown by this scatterplot.

2. Alfonso is thinking of getting a bloodhound. Bloodhounds usually weigh about 90 pounds. Based on the data, estimate for the lifespan of a bloodhound. Explain how you made your estimate.

3. Alfonso's friend Dani tells Alfonso that her bloodhound, Ol' Sniffy, lived to be 14.
Based on what you know, do you think this was because:

1. Alfonso didn't use a good estimation method,
2. Dani doesn't remember Ol' Sniffy's age correctly, or,
3. Ol' Sniffy lived an unusually long time?

Justify your answer.

Answers

Answer:

1. The heavier the dogs are, the shorter lifespan they have.

2. The lifespan of a bloodhound is on average 10 years long

3. Number 2

Step-by-step explanation:

#1 explination: Since its obvious that the graph angles downwards as it goes towards the left, and because as you go to the left you get heavier dogs, put 2 and 2 together and you get my answer.

#2 explination: We see 3 dots around 90 pounds, one that lives 11 years, and 2 that live 10 years. Since we need to be accurate, we need to find the average of 10, 11, and 10. (10+10+11)/3=10.33. Now we round to 10, so 10 is our answer.

#3 explination: Since there is a bloodhound that lives to be 14, we have two answers, 2 or 3. 1 doesn't work since if Alfonso doesn't have good estimation, the first two questions wouldn't matter *the more you know*. Since we see no unusual pattern between any of the three dots I mentioned earlier, Dani must of forgotten her dog's age (probably because of that dog years thing.)

Answer:

Person Above is correct.

Step-by-step explanation:

Give them brainliest.

An experiment involves rolling a die and drawing a card from a standard deck of 52 cards.What is the probability that the die lands on an even number and the card is a club?

Answers

Answer:

the probability of the die landing on 4 is 4/6 or 1/3 and the probability of the card drawn from the deck is a heart is 13/52 or 1/4.

Step-by-step explanation:

For the situation, write and solve an equation. Then, explain what your solution means. If you get stuck, try drawing a diagram on your paper.



A food pantry is making packages. Each package weighs 64 pounds. Each package contains 4 identical bags of rice and a 7-pound bag of beans.

Answers

Answer:

64*4=256

256/7= 1782

Answer 1789

That means that there are 1789 packages.

Petra invested $6,000 at 6.5% simple interest for 3 years. Martin invested $6,000 at
5% for 42 months. Who had more money at the end of their investments and by how much?

Answers

5% !!!!!!!!!!!!!!!!!!!

Hello!

I need help please...

What is [tex]\sqrt[450]{3,650}[/tex] as a divided.

Make a explanation to this... Do not copy, or go on g.oogle to get the answer to this...

And maybe you can show proof how you got the answer?

Thanks~

Answers

Answer: The Answer is in a fraction form

Step-by-step explanation:

9/73

It is in a fraction form

One market sells a 3-kilogram bag of tortillas for 45 pesos, and the second market sells 2 kilograms of tortillas for 22 pesos.

Which unit price is lower? / Would I subtract 2 kilo from 22 pesos?

Answers

Answer:

The second market is cheaper

Step-by-step explanation:

For the first market:

If the 3Kg = 45 pesos

then 1Kg = 15 pesos because you divide it by 3

In the same way for the second market:

2Kg = 22pesos

so 1Kg is 11 pesos as you divide it by 2.

Therefore the second market is cheaper as the unit price is lower.

Mrs. Murphy earns a 3.5% commission at her job in retail. How much does she need to sell in order to earn $630

Answers

Answer

$22.05

She need to sell she need to sell $22.05 in order to earn in order to earn $630

Answer: 22.05
Hope this works

Simplify the expressions by combining like terms

-3d + 8d - 5d

Answers

Answer:

-3d - 3d

i think because 8d and 5d are like terms

or.. -3d +8d -5d= 0

Simplify the expressions by combining like terms

4.2j + 6.7j - 5j - 5

Answers

Answer:

5.9j-5

Step-by-step explanation:

(4.2+6.7-5)j-5

2j+6.7j-5j is 3.7j and 5 cant be combined because it isnt a like term due to the absence of j next to it. so 3.7j-5

PLEASEEEEEEEEEEEE HELPPPPP MEEEEE

Answers

Answer:

4.5

Step-by-step explanation:

Answer:

4.5

Step-by-step explanation:

1 1/2 X 2 X 1 1/2

1.5 X 2 X 1.5

X means multiplying. To find the volume you need to multiply 3 of them.

Attachment Below: Please help!

Answers

Answer:

diagram a has a slope of 4

diagram b has a slope of 1/4

diagram c has a slope of -1/4

Step-by-step explanation:

have a great day :D

a: 1
b: 1/4
c: -1/4
blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah

anyone wanna help me w/ a prank?
ok so you have to have rob lox (my friend who i'm pranking has it so yea)
basically i need someone to fake replace her and pretend i replaced her, shes always been afraid of that.
Dw ill text her right after that it was a prank lol.

Answers

I’ll help you! (It says I need 20 letters so just ignore this part)

Answer:

um sure but first 8/16 simplified to 1/2

Step-by-step explanation: ddon't mind the equation

Please help! I'll give brainlist!

Answers

Answer:

36°

Step-by-step explanation:

finger slipped one sec

Answer:

36°

Step-by-step explanation:

Michael tracks his pay. He has already earned $97.75. He determined that the expression 97.75+17.80h represents the amount of money, in dollars, he has earned at hours.

Based on the given expression, about how many hours does it take Michael to earn 678.25?

Answers

33 hrs. Because 678.25-97.75= 580.5 and when you divide 580.5 by 17.80 you get 32.61 and you round that up to get 33 hrs

To make 3 cups of rice, Nina needs 5 cups of water. To make 9 cups of rice, she needs 15 cups of water. Write this as a proportion.

Answers

5/3 15/9
Hope it helped
5/3 5/19 i think maybe

Does anyone know this stuff if you do pls help me

Answers

The second picture last question is A

I really need help quick!!:) please!! I will give brainliest to first right answer!!!

Answers

Answer:

SA = 41.

Step-by-step explanation:

Add up everything and you get 41 as the SA.

Which letter on the number line represents 4.55?
F

E

D

C

Answers

Answer:

F

Step-by-step explanation:

F IS THE CORRECT ANSWER
Other Questions
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