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

can yall help me? please I need the right answer tbh

Answers

Answer:

the answer is D

Step-by-step explanation:

because if A is wrong and producers go through photosynthesis first ten d is the correct answer Hope This Helps <3

the answer to your question is D.

-16= -4 + w over 4 Help please lol

Answers

Answer:

w=-60

Step-by-step explanation:

-16=-4+w/4

-64=-4+w <-- you multiply both sides by 4

-60=w <-- you add both sides by -4

w=-60 <-- final answer

Identify the y-intercept of the line: y = 3x/4 - 3

Answers

Answer:

with -3 being your slope and 4 being your y-intercept.

Step-by-step explanation:

In y=mx+b your b is the m is the slop and b would be the y-intercept.. -3 would be your y-intercept

A store bought a fancy deck of cards for $36 and sold it for $72. What was the markup percentage?

Answers

Answer:

100%

Step-by-step explanation:

It’s 50 sometimes you need to work out the steps with a calculator or brain lol

Zoua’s older sister borrowed $3,000 from a bank to buy a used car. She asked Zoua to figure out the total amount she will have to pay back at a 4.6% simple annual interest rate over a period of 48 months. How much will Zoua’s sister have to pay the bank?
A 48.30
B 483.00
C 3048.30
D 3552.00

Answers

Answer:

Answer is C

Step-by-step explanation:

hope you have s good day

Answer:
C


Explanation:


Need a B in math by Thursday HELPP PLEASE

Answers

The y intercept is (0,1)
Slope-intercept form is Y=mX+B.
B would be the Y-intercept, in this case, B is 1, so your Y-Intercept is 1

Zachary purchased a computer for $1,600 on a payment plan. Two months after he purchased the computer, his balance was $1,370. Four months after he purchased the computer, his balance was $1,140. What is an equation that models the balance y after x months?

Answers

Answer:

Step-by-step explanation:

You are finding out each time how much is the items Zachary bought.

Then inputting a equation

$1,600 - ??? = $1,370

To find the unknown number, you must subtract the 2 original numbers.

$1,600 - $1,370 = $230

Computer costs: $230 leaving Zachary with $1,370 left.

Next, it says he purchased another computer...

$1,370 - ??? = $1,140

Again, we subtract the 2 original numbers to find the unknown.

$1,370 - $1,140 = $230 leaving Zachary with  $1,140 left.

Now we input this data into an equation...

y = -230x + 1600.

HELP ME i will give brainliest to first answer

Answers

X =4 y=28 you’re welcome <3

HELP for math!! thanks :)

Answers

Answer:

The answer is B

Step-by-step explanation:

The answer is the second one

Estimate the unit rate to the nearest hundredth

The unit rate is about $_ per egg.

Answers

Answer:

$2.40 per egg

$2.35

5 or more, round the number

Since we are rounding by the nearest hundred, the correct answer is $2.40 per egg

plz don't answer without a real answer brainly first to answer
Drag the numbers to order them from greatest to least, with the greatest at the to. sqrt{17} , sqrt{12} , 4.923935........, 5.03709......

Answers

Answer:

I think it's 4.923935,5.03709,{17},{12}

Step-by-step explanation:

don't get mad at me if it's wrong sry

Answer:

1. 5.03709 2. 4.923935 3. sqrt{17} 4. sqrt{12}

Step-by-step explanation:

what is the total length if the larger box has a length of 8 inches Amelia i-ready middle school

Answers

Answer:

Can you rephrase your question? It is incomplete

Step-by-step explanation:

V=L×W×H V=8×1 3/4×12 1/8 V=169.75in3

The first and second box choice's are Robert and Eileen.


And the Last box the answer choice's are 1.3, 2.7, 8.2, 28.9

Answers

Answer:

Robert bikes faster than Eileen by 1.3 mi/h

Step-by-step explanation:

first we have to find the mph rate

Robert: 9.5

Eileen: 8.2

Due right now!!! fast please and right :)

Answers

Answer:

Phyllis starts with 50$ and Chen starts with 15$.

Step-by-step explanation:

Please help! I need it asap.

Answers

Answer:

What?

Step-by-step explanation:

can someone help with this pls? i don’t understand math at all

Answers

Answer:

hey _ second answer is right _ ok

I wanna say it’s B. It shows how you distribute the a to the other letters.

I need help on my math
I need help on d

Answers

Answer:

If the diameter is 12, the 90° arc is (1/4)Π(12), or 3Π (approximately 9.42).

Step-by-step explanation:

if wrong pls forgive me

if right mark me brainliest

a. Diameter =1cm
Radius = diameter/2
Radius =1/2
Circumference =2x22/7x1/2
=44/14 = 22/7
=3.14cm

Graph y=2x−7y
Please help I am struggling whoever helps me with the correct answer I will mark "Brainlyist"

Answers

0,0. 4,1 slope 1/4. Hope this helps
0.0 the slope is 1/4

Ms. Martin ordered new pom poms for her cheerleaders. She paid $157.94, which included 6% sales tax. How much were the pom poms before tax?

Answers

Answer:

$149.00

Step-by-step explanation:

Selling Price = Final Price / 1 + Sales Tax

(reverse tax calculator)

"For Example:

If your total receipt amount was $57.98, and you paid 1.07 percent in sales tax, you’d simply plug those numbers into our calculator to find out that your original price before tax was $57.37. From there, it is a simple subtraction problem to figure out that you paid .61 cents in sales tax."

$149:00 your welcome

CAN SOMEONE HELP ME (30 POINTS)

Answers

Answer:

I'm pretty sure A

Step-by-step explanation:

-20 divided by 5

Answer:

The answer is A, -20 divided by 5

Step-by-step explanation:

As you can see on the chart, alongside the 20 is five smaller arrows, all you need to know is that you would divide the total temparature ( 20 ) by the five smaller arrows if that makes any sense :)

Write the equation of the line that passes through the following points: (7,5) (7,4)


Thank you.

Answers

Answer:y-5=0

Step-by-step explanation:

Use mental math to find the sum.
80+40+170

Answers

Answer:

290

Step-by-step explanation:

80+40=120

120+170=290

290

Answer:

290

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Number 17 please help brainliest for best
And 13 pts

Answers

Answer:

the width is 7 1/9 feet or 7.1 repeating decimal

Answer:

the width is 7 1/9 feet or 7.1 repeating decimal

Step-by-step explanation:

cause it just is

please help its that last question
26 PTS

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Solution ~

[tex]7 \dfrac{5}{6} - 3 \dfrac{1}{2} [/tex]

[tex] \dfrac{47}{ 6} - \dfrac{7}{2} [/tex]

[tex] \dfrac{47 - 21}{6} [/tex]

[tex] \dfrac{26}{6} [/tex]

[tex] \dfrac{13}{3} [/tex]

[tex]4 \dfrac{1}{3} [/tex]

Use mental math to find the sum.

67 + 25

Answers

92 is the sum jdjjxiqjjxjwxhwxwqsqxhwqdqqsjkzkxqxkuwx
the sum for 67+25 is 92

5/6=1/3+d
What fraction or decimal does d equal?

Answers

d =

fraction : 1/2

decimal : 0.5

5/6=1/3+d
1/3 to the same denominator
5/6=2/6+d
Minus 2/6 from both sides
3/6=d
Simplify
3/6=1/2
So d = 1/2 or 0.5
Plz give me brainliest answer

After you multiply a number by 9 and subtract the product from 300, the difference will be 183. Find the number.

Answers

Answer:

x=13

Step-by-step explanation:

300-(9x) =183

300-183=9x

117=9x

x=117/9

x=13

check:

300-117=183

Find an equation of the line that passes through the points (2,6) and (-4.6). Write the equation in slope-intercept form.

Answers

Answer:

change in y /change in y to get the gradient . therefore (6--6)=12  and (2--4)=6 thus 12/6=2 that the gradient.

Step-by-step explanation:

form the equation ion form of y=mx+c

and thus the equation y= 2x+c

if you take one point coordinate  such as (2,6)

such that y=6 and x=2 thus the equation will be

6=2*2+C

6=4+C

C=6-4=2

therefore  answer is  

Y=2X+2

Answer:

Y=2X+2

Step-by-step explanation:

Help I’m stuck!!!!!!!!!

Answers

0.45 i think just into fractions

2.222... (repeating) gallons

Help pls, will choose brainliest if explanation is provided

Answers

Answer:

[tex]solve \: when \: (f + g) \:(4) \\ \\ first \: solve \: for \: f(x) \\ \: \\ solution \: .... \\ \\ f(x) = 4x - 3 \\ f(4) = 4(4) - 3 \\ f(4) = 16 - 3 \\ f(4) = 13 \\ \\ \\ now \: solve \: for \: g(x) \\ \: \\ solution \: .... \\ \\ g(x) = {x}^{3} + 2x \\ g(x) = {(4)}^{3} + 2(4) \\ g(x) = 64 + 8 \\ g(x) = 72 \\ \\ (f) - (g) = 13 - 72 \\ (f) -(g) = -59[/tex]

Other Questions
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