Mathematics Middle School

Answer.
What are the four key points of Dalton’s Atomic Theory?
a.
b.
c.
d.
2. In 1913, Neils Bohr proposed a new atomic model known as the _________ model, which is patterned after the solar system.

Answers

Answer 1

Answer:

a. all matter is made of atoms

b. atoms are indivisible and indestructible

c. atoms of given elements are identical in mass and properties

d. compounds are combination of 2> different types of atoms

2. it's called Planetary model

Answer 2

Answer:

1. All matter are made up of atoms, which are indivisible

2. All atoms of the same element are identical; different elements have different types of atom.

3. Atoms can neither be destroyed nor created

4. Compounds are combinations of two or more different types of atoms.

Rutherford-Bohr Model

Step-by-step explanation:

Hope this helps

Related Questions

3 liters of water are shared equally by 5 people how much water does each person get?

Answers

3/6 so 1/2 litre …….. (dots are for the 20 character limit)
2/5 liters per person

3 liters divided by 5

What is the value of the expression below?

Answers

Answer:

-24

Step-by-step explanation:

The brackets basically stand for multiplication, therefore you would do -2 × -3 which equals 6.

You would do 6 × -4 .

This gives you an answer of -24.

Hope this helps :)

Answer:

-24

Step-by-step explanation:

(-2)(-3)(-4)

A negative times a negative is a positive

-2*-3*-4 = 6*-4

A positive times a negative is negative

-24

*Algebra* Please follow the instructions down below!!!! Thank you

Answers

it is the 3 answer it is the 3
I am pretty sure the answer is 3

A coffee company ground up 547,736 coffee beans and distributed it evenly into 560 containers. How many coffee beans are in each container?

Answers

It is 978.1 per container I’m sure
the answer is 978.1

Kiran poured 15 cups of water into equal-sized pitchers and filled 112 pitchers. How much water was in the full pitcher?

Answers

Answer:

aku ga bisa enggrez

Step-by-step explanation:

cuyyyyyyyy

help,help,help, help ,help ,helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Answers

Answer: A, C, A, B

Step-by-step explanation:

For all of these, we can use indecy laws such as when there is a power of a power, you can multiply the powers.

Using this, we get 6^-3 x -1 or,

6^3

For the second one we get (6)^-3 x 3 or,

6^ of negative 9 which is neither.

I am guessing that the last 2 are fractions. (1/6)^-3 is equal to 216 which is 6^3.

For the last one, (1/6)^3 is basically the opposite so the answer is 6^-3.

Hope this helps!

Answer: A, C, A, B

Step-by-step explanation: so the other person is right

Anitha and Jyothi shared some money. Anitha had $4x and Jyothi had $(2x + 8).
Both of them had $56 altogether. Find the value of x and hence find out how much
did Jyothi get?

Answers

Answer:

$24

Step-by-step explanation:

To begin we need to form an equation that equals the total amount of money, which is 56. The question tells us that Anitha's money and Jyothi's money comes to a sum of $56 (the total amount). So, in our equation we will be doing Anitha + Jyothi = 56; our equation will be 4x+2x+8=56.

The next step is to rearrange the equation to get x=..., and we can do this using the funnel method like I have shown in the attached image. First, I simplified to get 6x+8=56. Then, I subtracted 8 from both sides to get 6x=48. Finally, I divided by 6 on both sides to get x=8. This is the first step of the question completed.

The finish the question, we need to work out Jyothi's total money, and since we now know x=8, all we need to do is substitute 8 where x is for Jyothi. So, we need to calculate the answer to 2*8+8, and following the rules of BIDMAS, we get 24. Which is the final answer.

ATQ
4x + 2x + 8 = 56
6x + 8 = 56
6x = 56- 8
6x= 48
x = 48/6
x = 8

Jyothi = 2x + 8 = 2 x 8+8= $24

Refer to the equation 2x − 6y = 12.
step 1 Create a table of values for at least 4 points. Show your work.
step 2 Use the table of values to graph the line.

Answers

Answer:

As you can see from the table, for values of y=-2 for x=0, y=-1 for x=3, y==-3 for x=-3, and y=0 for x=6.

Plot these points on the coordinate plane and connect them with straight lines.

At a small airport, 3 out of 27 suitcases ar misplaced each day. If 810 suitcases are processed, how many suitcases would you expect to be misplaced?

Answers

Answer:

90 suitcases would be expected to be misplaced

Step-by-step explanation:

Given 3/27

810 / 27 = 30

30 x 3 = 90

Answer:

90

Step-by-step explanation:

cuz 3/26=1/9

so, 1/9 of 810 is 90.

identify the rule for the following pattern:

12, 25, 38...



divide 13

add 13


subtract 13


multiply 13

Answers

The answer would be add 13 because
12 + 13 would be 25, 25 + 13 would be 38. Hope this helps
Add 13. 13+12=25. 25+13=38 so on

I need help with two things!
(Please explain how to get the answer)

Answers

1: Morgan is incorrect because 10 to the power of three equals 1000. So 1000 times 2.23 equals 2230. Second one I have absolutely no clue. Sorry if I’m wrong
2. divide the first factors and then subtract the exponents

so 7.488 divided by 3.12 which is 2.4
then -8 - 2 which is -10

put them together and you get 2.4*10^-10

sorry List 5 examples of positive and negative numbers around us

Answers

Altitude - above sea level is positive, below sea level is negative.
Temperature - temperatures below zero are negative.
Money (Loans) - savings are positive, loans are negative.
Science - protons have a positive charge and electrons have a negative charge

Please help! I need it asap.

Answers

Answer:

What?

Step-by-step explanation:

what is (4)^-2? Please help I don't understand the topic and I need all the help I can get!

Answers

4^-2 = 0.0625

i typed it into my calculator and this is what i got!!
does this help at all love?
this is really easy I’m pretty sure the thing is 4 with a exponent of -2. Which just means -4 x -4 which equals 16

The temperature in the potter’s kiln dropped 760 degrees in 4 hours. On average, how much did the temperature drop per hour?

Answers

160 degrees per hour
140 degrees per hour I think

Meg will have
1
serving of frozen yogurt for dessert. One serving of frozen yogurt is
3
4
cup. Meg only has a
1
8
cup scoop.

How many scoops should Meg use to get 1 serving?

Answers

Answer:

Meg should use 6 scoops.

3/4 = 6/8

1/8 x 6 = 6/8

hope this helps :)

Well you need to make both denominators equal so you will times 4 x 2 to make it eight and then you also have to times 3 x 2 to make it six so, the answer six

PPPPPPPPPPPPlease help me

Answers

Answer:

1/7 divided by 5/2

= 1/7 x 2/5

= 2/35

2/35 is the answer

Step-by-step explanation:

What is the LCD 4/8 9/12

Answers

The least common denominator is 24
24 yaaaaaaaaaaaaaaaaaaaaaaaaa

Which statement about the solving process when an equation has no solution or infinite solutions is TRUE?
The variable will always end up on the left-hand side of the equation.
The constant terms will always be a multiple of 3.
Collecting the like terms will result in the elimination of the variable.
Gathering the like constant terms will always result in the value 0.

Answers

Answer:

A

Step-by-step explanation:

The variable will always end up on the left-hand side of the equation

The statement that is true about the solving process when an equation has no solution or infinite solutions is: “The variable will always end up on the left-hand side of the equation.” Hence, Option A is correct.

What are infinite solutions?

Both sides are equivalent in an endless solution. For instance, 12x + 4y - 16 = 6x + 2y - 8 Using a formula or method for infinite solutions, one can simplify the equation and make both sides equal to one another, making it an infinite solution. Infinity is a symbol for boundlessness or infinity. The sign "∞" is typically used to denote it.

When the lines are parallel and they share the same y-intercept, the system of equations has an infinite number of solutions. If the slope and y-intercept of two lines match, they are in fact the exact same line. The variable, which always appears on the left side of the equation, has infinite solutions.

Therefore, Option A is correct.

Learn more about infinite solutions from here:

https://brainly.com/question/27863602

#SPJ2

what is 11/2 + 4/9 simplified

Answers

Answer:

5 17/18

Step-by-step explanation:

11/2 + 4/9

(11×9 + 4×2) / 18

(99 + 8) / 18

107/18

5 17/18

This is the answer for the questions

Shawn purchased $87.06 worth of merchandise at a department store. He gave the clerk $100.

Round to the nearest whole dollar to estimate how much change Shawn will receive.


What is the actual amount of change Shawn will receive?

Answers

Answer:

100-87.06=12.94

Answer:

Shawn will receive $13 in change

Step-by-step explanation:

100 - 87.06 = 12.94

when you round up 12.94 it will become 13

I need help on how to show my work and how to get the answer help me pls

Answers

Answer:3,150

Step-by-step explanation:

Well I what I did was I took 450 and then multiplied it by the number of days there are in a week which is 7 so I did 450 x 7 and got 3,150

I hope its right if not please let me know and I would be happy to check over again =)

Which best describes the error in solving the inequality or graphing the solution of the inequality?

use picture to answer question

Identify and graph the correct solution.

Answers

Answer:

111111111111ʕ•ﻌ•ʔʕ•ﻌ•ʔʕ•ﻌ•ʔʕ•ﻌ•ʔʕ•ﻌ•ʔ

Answer:

i do not know

Step-by-step explanation:

i just need to know the answer no showing work pls help me!

Answers

Answer:

Step-by-step explanation:

Question 4: Whole

Question 6: Percent

Question 7: Part

Question 8: Whole

I hope I did this right!! I'm sorry i couldn't figure out number 5 :(

Have a blessed day <333

What is the LCD for 3/6 and 10/12

Answers

Answer:

12 Lcd

Step-by-step explanation:

3/6 and 10/12

6 can go into 12

Answer:

the LCD for 3 and 6 is 6

the LCD for 10 and 12 is 60

A company's division registered a loss of (-$3,840) while producing 40 identical parts. What was the loss per part?

Answers

Answer:

$ -96

Step-by-step explanation:

Divide -3,840 by 40:Answer: $ -96

I hope it helps ♥️♥️♥️

Answer:

The answer might be C) -$96

Hope this helps you, have a nice day! :D

helllpppp I need to get my grade up to a B by Thursday!!

Answers

Answer:

Less than

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

Less-than

Step-by-step explanation:

Which of the following is an improper fraction?
[tex]\frac{21}{25}[/tex]
[tex]\frac{8}{7}[/tex]
[tex]\frac{6}{11}[/tex]
[tex]\frac{2}{3}[/tex]
May i please know this quickly! :)

Answers

Answer:

8/7

Step-by-step explanation:

8/7 because the numerator is greater than the denominator.

Answer:

8/7

Step-by-step explanation:

a fraction in which the numerator is greater than the denominator, such as 5/4.

When you are making a fraction with a whole number in it how do you set it up after dividing it

Answers

Answer:

Does this help?

Step-by-step explanation:

mark brainliest if this helps at all! good luck with the rest of your assessment!

On the dashboard of Josh's car, there is a clock and an odometer. The odometer tells how many total miles the car has been driven. Josh glances at his car's dashboard (A), and then looks back a few minutes later (B). (Pls I need help. This is really important)

Answers

On the dashboard of Josh’s car need a need engine
Okay so you don’t give numbers but I can tell you how to solve (where to put your numbers.
The way to solve is simply to take B and subtract that from A and the product of that is how far he has driven in set minutes.

Example- 1100(B)-900(A)=200(Amount of miles on set minutes.)

Yes I know cars don’t go that fast it’s just an example.
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