What is conserved in physical changes?

shape
energy
mass
density

Answers

Answer 1

Answer:

Mass

Step-by-step explanation:

Matter can change form through physical and chemical changes, but through any of these changes matter is conserved.

Answer 2

Answer:

Matter is anything that has mass and takes up space. ... Matter can change form through physical and chemical changes, but through any of these changes matter is conserved.

so mass is the answer

Step-by-step


Related Questions

mr. Murphy's Megan graph to show his class the amount of water person consumes from food and beverages over time.
a person consumes 12 gallon of water each day (i already answerd this part)

(this part is the one im asking about )
complete the equation to show the relationship between X the number of days and Y the amount of water consumed
Y = ? X​

Answers

Answer:

y = 12x

Step-by-step explanation:

From the question, we are told that a person consumes 12 gallons of water each day

Now, we want to complete an equation

From the question, x is the number of days and y is the amount of water consumed

Thus, mathematically, we have the equation as;

y = 12x

since in the first day, 12 gallons is consumed, the second will be 12 * 2 and so on

So the amount of water depends on rate number of days

Answer:

12

Step-by-step explanation:

I got it correct.

A tetrahedron is a polyhedron consisting of four equilateral triangles.

Answers

Answer:

the second one

Step-by-step explanation:

because if you think it how it folds the second one doesnt form a tetrahedron.You can try it by drawing it in a letter then cutting it to see which forms a shape and which doesnt.

The number of red marbles in a jar is 3
times the number of blue marbles.
There are 27
red marbles and b
blue marbles. Write an equation to represent this situation. How many blue marbles are there?

Answers

Answer:

Bx3=27 there are 9 blue marbles

Step-by-step explanation:

Add a grocery store bananas cost $.90 each and oranges cost $.80 each Ava has $15 to spend if Ava wants to buy an equal amount of bananas and oranges at most how many of each can't you buy

Answers

Answer:

9

Step-by-step explanation:

We are given that

Cost of each banana=$0.90

Cost of each orange=$0.80

Ava have total money=$15

We have to find the number of each if Ava wants to buy an equal amount of bananas and oranges at most.

Let x be the number of each.

According to question

[tex]0.9x+0.8x=15[/tex]

[tex]1.7x=15[/tex]

[tex]x=\frac{15}{1.7}[/tex]

[tex]x=8.8\approx 9[/tex]

[tex]x=9(approximately)[/tex]

Hence, number of banana bought=9

Number of oranges bought=9

When a number is increased by 5.5%, the result is 60. What is the original number to the nearest tenth?

Answers

Answer: 56.9

Step-by-step explanation:

Let the original number be denoted by x.

We are informed that when the number is increased by 5.5%, the result is 60. This can be represented by:

x + (5.5% of x) = 60

x + (0.055 × x) = 60

x + 0.055x = 60

1.055x = 60

x = 60/1.055

x = 56.9

The original number is 56.9

Simplify: (5+√−9)(−9+√−196)

Answers

Answer:

-1809 + 899i  or

-1809 + √-899

Step-by-step explanation:

foil method

i² = -1

What should you do to both sides of the inequality in order to solve x + (-2) > 3?

Subtract 3.
Subtract 2.
Add 3.
Add 2.

Answers

Answer:

-3.2 or -1.5

** PS - with these problems literally just go to the website "mathpapa" it has an algebra calculator....ik the name is weird just go with it thank me later. **

x+(-2)>3

-2x>3 -3/2 or -1.5

---- -----

-2 -2

Answer:

add 2

Step-by-step explanation:

What is the simplified base for the function f(x)=2(3square root of 27^2x)?
A. 2
B. 3
C. 9
D. 18​

Answers

Answer:

D. 18

Step-by-step explanation:

what life was like in the time of

9514 1404 393

Answer:

  C.  9

Step-by-step explanation:

Maybe you want to simplify ...

  [tex]2\sqrt[3]{27^{2x}} = 2(3^3)^{\frac{2x}{3}}=2(3^{2x})=2(3^2)^x=\boxed{2\cdot 9^x}[/tex]

The base of the simplified function is 9.

What is the length of AC?

Answers

a^2 + b^2 = c^2
25^2 + 16^2 = c^2
881 = c^2
c = ~29.68
This is where you use Pythagoras theorem, which is:

a^2 + b^2 = c^2
25^2 + 16^2 = c^2
881 = c^2
(And then square root it to get c)
C = 29.7cm

Samantha used four balls of yarn to knit a doll blanket. Now she wants to knit a similar blanket that is three times as long and three times as wide. How many balls of yarn will she need to complete the larger blanket?

Answers

Answer:

36

Step-by-step explanation:

She kniited a blanket with a certain area with 4 balls.

The new blanket will 3x3 =9 times as much area, so 9 x4 = 36 balls of yarn

What is the equation of a line that has a y-intercept of -3 and is parallel to the line 3x = 4 + 5y?

Answers

Answer:

y = (3/5)x - 3

Step-by-step explanation:

If 3x = 4 + 5y, then

5y = 3x - 4

y = (3/5)x - 4/5

*** The given equation's slope is (3/5). For the new line to be parallel to the old one, it must have the same slope or 'slant', 3/5.

*** The requested y-intercept is -3.

For y = mx + b, 'm' is the slope and 'b' is the y-intercept.

The answer should be    y = (3/5)x - 3    in 'y = mx + b' slope-intercept form.

May someone please help :)

Answers

Step-by-step explanation:

Hope it's Correct...Thank you ^_^

A teacher asks each student in the class to randomly choose a number between 1 and 80 and write it down. Devon and Michiko write down a number. What is the probability that both of their choices will be greater than 60? Express your answer as a decimal. If necessary, round your answer to the nearest thousandth.

0.063
0.06
0.938
0.25

Answers

Answer:

0.063

is the correct answer

Answer:

0.063

Step-by-step explanation:

a rectangular field has as dimensions 49 m and 36 m calculate the length of the side of square having the same area as the fieldI want the solution

Answers

Answer:

length =25m

breadth =16m

area of rectangle =25*16

according to question

area of rectangle =Area of Square

Area of squre =400m

Side *Side =400m

(Side)=(20m)

Side =20m

order each set of integers from least to greatest .
(12,-4,9,-10,-18,15​

Answers

Answer:

Step-by-step explanation:first it's( -4,9,-10,-18,12,15

hope it helps you welcome

Will give brainliest if your answer isn't random, i really need help with this

Answers

Answer:

Linear, y=6x-21

Step-by-step explanation:

Graph the answer to get an idea of the shape: linear.

Use y=mx+b and m=y2-y1/x2-x1 to find formula

m=y2-y1/x2-x1=3-(-9)/4-2=12/2=6

y=6x+b

9=6(5)+b

9-30=b=-21

y=6x-21

A group of 6 students are going to have a vote to determine who should be President, Vice President, Secretary, and Treasurer with only 1 person per job. How many different groups can be formed from the 6 students?

Answers

Answer:

there can be 5 with 2 as commoners

Step-by-step explanation:

president1, vp2, secretary3, tresurer4, the other are citizens

You have $20 and earn $0.75 for each cup of orange juice you sell. Write an equation that represents the total amount A (in dollars) you have after selling j​ cups of orange juice.

Answers

Answer:

A= 20 + 0.75*j

Step-by-step explanation:

Giving the following information:

You have $20 and earn $0.75 for each cup of orange juice you sell.

To calculate the total amount of dollars (A), we need to use the following formula:

A= 20 + 0.75*j

j= number of cups

For example, for 15 cups:

A= 20 + 0.75*15

A= $31.25

help please hurry!!!!!!!!!!!!!!!!!!!!!!!!! What is a correct name for the angle shown?

Line segments R S and S T combine to form an angle.
Angle R
Angle S
Angle R T S
Angle S R T

Answers

Answer:

Angle RTS

Step-by-step explanation

Say it out loud it goes, RS, ST.

If you put RS and ST together the angle RTS

sharon said she spent 5/7 of her clothing allowance on a winter. if she was givan a $70 clothing allowance, how much was the coat​

Answers

Answer:

$50

Step-by-step explanation:

1. First you need to divide 70 by 7.

2. Your answer should be 10.

3. You then need to multiply the product, 10 by 5.

4. You answer should be 50 and because we are using this in a money situation the answer is $50.

Answer:

50

Step-by-step explanation:

If you have $200 to save today and you keep it stashed away at your house how much will you have in 1 year?

Answers

Answer:

200

Step-by-step explanation:

200 because there's no interest rate

Answer:

The answer is 2,400 dollars Because there is 12 months in a year so 200 x 12 = 2,400

Step-by-step explanation:

Sandra has a rectangular pool in her backyard that is 9 feet long and 4 feet wide. A resort has a pool that is similar in shape, as shown. How long is the resort pool, in feet?

Answers

Answer:

Length of the resort pool is 13.5 ft.

Step-by-step explanation:

Since, both the rectangular pools are similar in shape,

Corresponding sides of these pools will be proportional.

By the property of similarity,

[tex]\frac{\text{Length of resort pool}}{\text{Length of backyard pool}}= \frac{\text{Width of the resort pool}}{\text{Width of the backyard pool}}[/tex]

[tex]\frac{l}{9}=\frac{6}{4}[/tex]

l = [tex]\frac{6\times 9}{4}[/tex]

l = 13.5 ft

Therefore, length of the resort pool will be 13.5 ft.

OK, so, How to stop procrastinating and get work done????

Answers

Focus more and more on your work rather than thinking you’ll never get it down. With a mentality like that, you will actually never get it done because you think you won’t. The mind is quite a powerful thing but if you use it negatively then you can really set yourself back.

Solve for c.
40 + 2 < 10
A
AL
s

Answers

Answer:

c < 2

Step-by-step explanation:

We have an inequality and are asked to solve for the variable "c."

4c + 2 < 10

To solve for c, we need to get it by itself, isolate it in every way possible.

4c + 2 < 10

Subtract 2 from both sides :

4c < 8

Now before we move on, take this into consideration, sometimes the inequality sign can be switched but under one condition. And that is when you divide both sides by a negative, since we are not dividing by a negative, no switch of the sign is needed.

Divide 4 from both sides to get c alone :

c < 2

I've gotta find the value of the variable if m<1=2x+44 and m<5=5x+38​

Answers

Answer:

Line a is parallel to line b:

m∠1=m∠ 5, because they are correspondent angles, then:

2x+44=5x+38

Solving for x:

2x+44-2x-38=5x+38-2x-38

6=3x

3x=6

Dividing both sides of the equation by 3

3x/3=6/3

x=2

1. Move terms, 1=2x+44 then calculate -2x =44 -1 then divide Both sides -2x=43 so it would be x= -43/2

2. Would be move terms 5=5x+38 then calculate -5x= 38-5 then divide both sides -5x =33 then it would be x= - 33/5

2.
B.
120°
60°
45°
OA = 2 cm, OB = 3 cm, OC = 5 cm, OD = 3 cm.

Answers

Answer:

what's your question I am not able to understand

How many solutions are there to the equation 7m = 49?
a:2
b:1
c:0
d:infinite

Answers

Answer:

B.) 1

Step-by-step explanation:

49 ÷ 7 = 9

the slope of the line through each pair of points 1) (-14,-7) , (5,-4)​

Answers

Answer:
M=3/19

This is right... this is our topic in math toooooooooo

Answer:

m=3/19

Step-by-step explanation:

Find the slope between 2 points:

(x1,y1)=(-14,-7)

(x2,y2)=(5,-4)

First you would use the slope Formula:

m= y2,-y1/x2,-x1

=-4--7/ 5--14

=3/19

Find the slope: (-2,5) and (2,1

Answers

-1,4 I think so, good luck

how do i figure out prime numbers

Answers

Answer:

You can figure out prime numbers by simply knowing that you can divide that number not more than one. For example, you could know that a prime number is 7 because you can only divide it once like 7 divided by 1. While for number 14, you can divide it twice which isn't a prime number because there is 14 divided by 2 and 14 divided by 1 which is more than one to divide. That's possibly an easy way to understand how to figure them out.

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