Mathematics Middle School

GIVING BRAINLIEST!!! DUE IN 30 MINUTES!

Please answer the following with 5-7 sentences.

What happens to temperature as energy is added to a substance that is changing state?

Answers

Answer 1

Answer:

Step-by-step explanation:

When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation). ... When the pressure exerted on a substance increases, it can cause the substance to condense.

Related Questions

what is 2+2. i need an answer now

Answers

Answer:

4

Step-by-step explanation:

Cormac is making 31 phone calls each week as part of a fundraiser. Last week, he made 8 phone calls on weekdays. Which equation could be used to find x, the number of phone calls he made last week on weekend days? HELPP

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Answer:   k-y

Step-by-step explanation:   Let's call the overall phone calls made every week 'k', and the phone calls made on the weekdays 'y'. Since 'x' is the number of phone calls made per weekend, y+x should equal k. But we don't know what x is so we need to make x the subject, which would be x = k-y.

e.g: k=31, y=8:

31-8= 23 phone calls made on the weekend.

true or false 0.625 = 62.5% = 5/8

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Answer:

true

Step-by-step explanation:

Answer:

It true

Step-by-step explanation:

Helpppp please?? tysm

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Answer: d.

Step-by-step explanation:

Trapezoid so D!!!! Is the answer

I already know the answer to the first question just answer the other three, please

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6: A
7: 24 quarts
8: 78.9kg

Someone help me solve this and could you explain why too?

Answers

Answer:

3.5

Step-by-step explanation:

Well its easiest to just plug in the answers and see like 2 times 3.5 is 7.

Another way is saying 7 divided by 2 is 3.5

then u check to make sure its the same for all the numbers.

Which it is because 21 divided by 6 is also 3.5 :)

Using the algebra tiles below, solve -2x - 3 = 3x - 8.

Answers

The answer is -2x-3=3x-8
x=1

Answer: x=1

Isolate the variable by dividing each side by factors that don't contain the variable.

Write the equation of each linear relationship in slope-intercept form

Answers

Answer:

y= 10x- 6

Step-by-step explanation:

y=mx+b

the x values are adding by 10

Y values are subtracting by 6

I'm so sorry if I'm wrong

Answer:

y= 10x- 6

Step-by-step explanation:

so..... what is 40.99 and 1039,99 rounded to the nerast ten
A. 1229,0000
B. 123.56
C 1398.
noun of the above

Answers

Answer:

None of the above

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Not sure

$17.50 for 7 candy bars =$17.50/7 bars =
$____ / 1 bar

300 students for 12 classes =300 students/ 12 classes = ________ / 1 class

Answers

$17.50/7=$2.50 and 300/12=25
1. Is 2.50 a bar
2 is 25 kids per class hope this helps

Henry’s baseball team needs new equipment each new baseball will cost 5.50$ And each new bat will cost 14.95 how much will the team spend if they buy 8 new baseballs and 2 new bats

Answers

Answer:

73.9

Step-by-step explanation:

multiply 5.50 by 8 and 14.95 by 2

EDIT: then add the products together

Solve this linear equation using substitution. (Please show work!)

X + Y = 7

7x + y = 1

Answers

Answer:

y=1-7x

Step-by-step explanation:

7x+y=1

The first thing to do is get the y by its self. So u cancel the 7x out by-7x and bring it to the other side.

7x-7x = 0

Now all we have left is: y=1-7x

Hope it helps and is right.

The answer is 7=1-7x

2 A transformation is applied to a figure to create a new figure. Which transformation does not
preserve congruence?
AA rotation of 180 counterdockwise
B A ditation by a scale factor of 0.25
C A reflection across the axis
D A translation 4 units to the left

Answers

Answer:

B

Step-by-step explanation:

I Did some research but it might not be right but i hope it is

I think it’s B I’m not 100% sure but it would be the most logical answer.

Add 28, 362, and 104. Choose the appropriate number for each place value in the sum. Hundreds

Answers

Answer:

28+362+104=494

hundreds: 4

tens: 9

ones: 4

hope this helps :)

494



Hundreds 4. Tens 9. Ones 4

Help me with this pleaseee.

Answers

Answer:

i think it would be B bc its not A or C

Step-by-step explanation:

The answer to that is b

In ΔABC, point M is the midpoint of side AB and point D is the midpoint of segment MC. Prove that the area of ΔADC= the area of ΔBMD

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A line segment from a vertex to the midpoint of the opposite side is a "median". A median divides the area of the triangle in half, as it divides the base in half without changing the altitude.
AAMC is half AABC. AADC is half AAMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
ABMC is half AABC. ABMD is half ABMC, so is 1/4 of AABC. (By the formula for area of a triangle.)
Then, AADC = 1/4 AABC = ABMC, so AADC = ABMC by the transitive property of equality.

Choose all that are correct

Answers

Answer:

We can’t see the “above” or the problems u are only showing us the answer choices

Step-by-step explanation:

how r we supposed to know lol

calculate rise and run (slope) for both and y intercept on second

Answers

Answer:

B: -5/4

Step-by-step explanation:

Starting from the point on the left at (-3,-2), you go to the left 4 which is the positive direction, and down 5 which is the negative direction. This brings you to the other point at (1,-3).

Hope this helps! :)

Question 8:B
Question 5:C
For question 8, you want to can’t how much it rises first and how many spaces you have to go over second. When ever you count the amount of spaces to move horizontally you always count left to right. So you start at the point furthest to the left, and since that point is higher instead of counting up to the next point you have to count down, which means it is going to be a negative number. You count down 5 spaces, and then right 4 spaces to get to the next point which means the slope is -5/4.
For question 5, it is the same concept so from the left point you have to go down 2 and over 8, which makes the slope -2/8 but you have to simplify it to make it -1/4. The y-intercept is -1.5 because that is where the line crosses the y-axis

Whit usually drives 5/8 mile to work on the expressway. When the traffic is bad he takes another route that is 7/8 mile long. How much shorter is his usual route?

Answers

His first way is 2/8 shorter than his second way
His first route was actually 2/8 mile shorter than his second route!

Jennifer needs 1/8 yard of red ribbon, 1/4 yard of blue ribbon, and 1/2 yard of green ribbon. She estimates that she needs about 1/2 yard of ribbon in all. Is she right?
How close to the actual answer is her estimate?

Answers

Answer:

she needs 3/8 more than what she said

Step-by-step explanation:

1/4= 2/8

1/2= 4/8

adding 1/8+2/8+4/8= 7/8

since 1/2= 4/8 she is wrong

she needs 3/8 more than what she said

No she is not right like someone already said she needs 3/8 more

Calculate and write in simplest; 5 1/6 - 2 7/9=

Answers

3 33/54

5-2=3

Then you have to get a common denominator and I chose 54.

Cannot be reduced

hope this helped, again!

Use the distributive property to rewrite the expression as a multiple of the sum of two numbers with no common factor: 24 + 3

Answers

Answer:

27 hope that's correct

Answer:

20+4+3=

Step-by-step explanation:

i really don't think this is right

Several items in a store are on sale. Complete the table with the correct prices.... btw pls dont ans this bc im trynna pass math so if u know it then pls help me

Answers

Answer:

the first is 12 ,the second is 91 ,third is 49 and fourth is 48

Step-by-step explanation:

im not sure about the last two 100% but im pretty sure :/

The first blank is $48. Discount (60x20)/100=12. 60-12=48.


The second blank is $49. Discount:
(140 x 65)/100 = $91.00 Final Price:
140 - 91.00 = $49.00

The third blank is $91.


The fourth blank is $12.

The area of the parallelogram below is ____ square meters.

A parallelogram with height labeled with 7 meters. The top horizontal side is labeled 9 meters. The base of the left triangle formed by the height is 2 meters.

Answer has to be in numbers. pls help meh T-T

Answers

Answer:

14 square meters

Step-by-step explanation:

The formula for the area of a parallelogram of length L and height H is

A  = L * H.

Here, the area is A = (2 meters) * (7 meters) = 14 square meters.

This answer hinged upon my understanding of this situation, and could be incorrect because I'm not taking into account the "triangle" mentioned here.  When at all possible you should share any diagrams given in the problem statement, or at least describe them accurately in words.

Answer:

60.4 or 63

Step-by-step explanation:

if the diagonal is 7, do a^2+b^2=c^2   to find vertical height

2^2+b^2=7^2  

4+b^2=49

b^2=45

square root

b= 6.7

solve

6.7*9=60.4

But if 7 is the vertical height, just do b x h

7*9=63

divide.
-3 3/4 divided by 3
A. -1 1/4
B. -3/4
C. 3/4
D. 1 1/4

Answers

Answer:

Your answer would be -1 1/4

Step-by-step explanation:

Convert the elements to fraction, Apply the A/B fraction rule, Cross - cancel the common factor which is 3 and convert the improper fractions to mixed numbers.

Hope this helps :)

Answer:

A.

Step-by-step explanation:

-5/4 or -1.25 or -1 1/4

Which expression would be easier to simplify if you used the associative property to change the grouping?

A. {(-1/3) + (-2/3)] + (-4/5)
B. (160 + 40) + 27
C. 0.85 + [0.15 + (-1/3)]
D. 1 + [3/4 + (-1/4)]

Answers

Answer:

B

Step-by-step explanation:

the answer to this is b

below here is a website that you will be able to write b-day ideas for me :) it is nothing and I promise is just a bored for ideas :)

Answers

Answer:

An Among Us lobby with your friends could be a lot of fun. Otherwise I've held sleepovers, watching movies and generally just having a good time with my friends. Coronavirus makes it really hard to do stuff, but if you haven't done it yet, ax throwing is SUPER fun.

go to sky zone or defy gravity

Help me out please, And answer both, Thank you so much, and enjoy your day!

Answers

Answer:

The first exercise:

Is:

Right triangle.

And the second exercise:

Is:

B. II and III

whats the point on the graph​

Answers

Answer:

(0,-2.5)

Step-by-step explanation:

Answer:

(0,-2.5)

Step-by-step explanation:

.....................

Chad is filling a large bucket that is 15 inches deep. He notices that it takes two minutes to fill the bucket with three inches of water. He estimates it will take eight more minutes for the water to reach the top of the bucket if it continues t the same rate. Is he correct?

Answers

Answer:

No it would take approximately 10 minutes

Step-by-step explanation:

If it takes 2 minutes to fill 3 inches and 15 has 5 3's in it then you would multiply 2 by 5 and you would get 10.

No, it will take almost 10 minutes.

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