Answer:during phase chages
Step-by-step explanation:
During phase changes, energy changes are usually involved. For example, when solid dry ice vaporizes (physical change), carbon dioxide molecules absorb energy. When liquid water becomes ice, energy is released. Remember that all chemical reactions involve a change in the bonds of the reactants
Find the Mean Absolute Deviation of the set: 56, 21, 55, 30, 33
A-65.2
B-192
C-39
D-13.2
Answer: it's c
Step-by-step explanation:The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
56+21+55+30+33/5=39
Answer: i think the answer is 39
Step-by-step explanation: the mean is the average of all the numbers so you would add 56+21+55+30+33 =195 you would then dived the total by the amount of numbers there are in this situation there are 5 so you would do 195diveded by 5 which = 39 I hope this makes since and this helps if this is not what your asking plz clarify :)
what's the missing side? A side of 6 cm and a side of 6 cm. what is the hypotenuse? Round the answer
Answer 4 I think
Step-by-step explanation:
6*6=36 round it off 4
Julie's and Don's mathematics classes are selling sandwiches as a fundraiser. Julie's class has reached of their goal and Don's class reached of their goal. Julie says her class has collected more money than Don's class.
What is a possible goal that Julie's class and Don's class could have set if Julie's class collected LESS than Don?
Julie's Class: $300 Don's Class: $300
Julie's Class: $600 Don's Class: $400
Julie's Class: $200 Don's Class: $125
Julie's Class: $400 Don's Class: $350
Help! Question on khan academy! pls explain
Answer:
He will have 10.
Step-by-step explanation:
this is an example of the counting principle.
when you add the numbers of a probability, it will give you the amount you need.
4 + 3 + 3 = 10. hope this helped! branliest plz.
Sheila buys two concert tickets from her friend. She pays $90 for the two tickets . She looks at the tickets and sees that each ticket has face value of 52.50
what was the percent markdown, rounded to the nearest whole percent/?
ASAP PLZ
Answer:
52.50×2=105. then 105-14% answer is 14%
Answer:
14% markdown
Step-by-step explanation:
I havent had to do one of these in a while so I'm not 100% sure that I answered it right. its pretty hard to explain but just add a comment asking for the steps if u want them. and tell me if it was right or wrong plz
HELP NOW PLEASE!
For the below graph what is the Constant Rate of Change?
A. 3/1
B. -3/1
C. 1/3
D. -1/3
Answer:
-3/1 is the correct answer
Please help me write this inequality from the graph.
Answer:
y < 1/2x + 8y <
Step-by-step explanation:
y = mx+b
m = slope
b = y - intercept
slope = 1 1/2
y - intercept = 8
Line is dotted so its not equal to
The shade is underneath so its less than.
y < 1/2x + 8
3(4x - 8) = 15x - 10 - 3x. Explain if this is an infinite, one or none solution problem. Explain your answer!!
Answer:
There are no solutions to this answer.
Step-by-step explanation:
I checked my answer by going to an app and they said there was no answer to the question too.
Create a proportion using the form = to represent the following word problem.
What is 60% of 20?
Answer:
60/100 and x/20 and x=12
Step-by-step explanation:
60 % of 20
60/100 = x/20
cross product
60 * 20 = 100x
divide by 100
1200/100 =x
12=x
Answer:60/100 = x/20 x= 12
hope it's right
PLEASE ANSWER! I WILL GIVE 80+ POINTS, BRAINLIEST, A THANKS, 5 STARS, AND A FOLLOW IF YOU ANSWER ALL OF THESE (P.S they all have to do with direct variation):
#1) If y varies directly with x, write an equation for the direct variation. Then find each value. If y = –4 when x = 10, find y when x = 5
#2) If y varies directly with x, write an equation for the direct variation. Then find each value. If y = 12 when x = –15, find y when x = 2
#3) If y varies directly with x, write an equation for the direct variation. Then find each value. Find x when y = 18, if y = 9 when x = 8.
Answer:
Step-by-step explanation:
1: -2?
2: 17?
3: 16?
Jerod is making candles from beeswax. He has 132.72 ounces of beeswax. If each candle uses 8.4 ounces of beeswax, how many whole candles can he make?
brainliest will be given!
Answer:
15 candles
Step-by-step explanation:
132.72÷8.4=15.8
therefore jerod can make 15 whole candles
hope this helps
A 10 plain hats cost $3.60. What is the unit rate of a hat?
A.Each hat costs $0.30.
B.Each hat costs $0.60.
C.Each hat costs $3.60.
D.Each hat costs $0.50.
E.Each hat costs $1.20.
F.Each hat costs $0.36.
Answer:
F - $0.36
Step-by-step explanation:
3.6 ÷ 10 hats = .36
Answer:
f
Step-by-step explanation:
all you do is divide 10 by 3.60 because 3.60 is the total amount you paid for all the hats and 10 is how many hats you bought hopefully this answer was helpful
What is the distance between -3 and 12
Does the table represent a proportional relationship? (I know I'm asking again but I am legit confused now)
Answer:
No. There is not a constant slope on the y side of the table
Step-by-step explanation:
Answer:
I believe so it a difference between x and y so it should be.
Step-by-step explanation:
im a little bit confused but i believe thats right
Yesterday Sara drove 39 miles. She used 1 gallons of gas. What is the unit rate for miles per gallon
A- 31.6 miles per gallon
B- 23.5 miles per gallon
C- 51.2 miles per gallon
D- 16.4 miles per gallon
Answer:
question / options error?
Step-by-step explanation:
39miles cost a use of 1 gallon so rate would be 39miles per gallon so I believe it should be 1.smt gallon for the question?
Answer:
It would be D I got this question as well hope this helps
pls tell me if it's wrong if so sry
There are 9 bottles of juice on a shelf. Each serving of juice is 15 of a bottle.
How many servings of juice are there in the bottles on the shelf?
I donthave time to work these out so please help :)
Answer:
135
Step-by-step explanation:
PLS HELP ME THIS IS FOR MY MATH HOMEWORK!
Answer:
since there gonna eat two servings of 3/8 of turkey it should be 6/8 per person so there gonna need to buy 12 turkeys and it should cost 12.6
Step-by-step explanation:
two servings of 3/8 is equal to 6/8 and if multiply 6/8x15 we get 11.25 in total 12 turkeys will be needed, if we get 11 turkeys there will be one person with less turkey than the other people
Is this right? I chose 15.
Answer:
Correct, it is 15
Step-by-step explanation:
Because 3 turns into 9, you also want to multiply the other by 3, so you’d do 5x3 to get 15
Answer:yes you are correct. The answer is 15
Step-by-step explanation:
You would have to do 9/3=x/5. If you simplify that it would be 3x=45. If you simply further, you would get x=15 so yes you are correct.
Plz :<
In a science experiment, the temperature of a substance is changed from 42 degrees Fahrenheit to -54 degrees Fahrenheit at an average rate of -12 degrees per hour. Over how many hours does this change take place? *
10 points
A -8 hours
B. 1/8 hour
C. 1 hour
D. 8 hours
Answer:
D 8 hours
Step-by-step explanation:
it has to be positive and it is obviously more than 1 hour so it has to be 8 hours by process of elimination.
Select the correct answer from each drop-down menu.
Claire is on a business trip. She’ll be traveling from Liverpool, England, to Melbourne, Australia.
The latitude value of Liverpool is 53.41 degrees, and the longitude value is -2.99 degrees. The latitude value of Melbourne is -37.81 degrees, and the longitude value is 144.96 degrees. The two cities are
degrees apart in latitude. The two cities are
degrees apart in longitude.
Answer:
the difference in latitude is 91.22°
the difference in longitude is 147.95°
Step-by-step explanation:
For Liverpool, London. The latitude is 53.41°, longitude is -2.99°
For Melbourne, Australia. The latitude is -37.81°, longitude is 144.96°
The negative or positive magnitude of their values shows their position on either sides of the origin of the latitude (equator) and the origin of the longitude (prime meridian).
The latitude measures the relative position of a point, north or south of the equator (latitude 0°). The longitude measures the relative position, east or west of the prime meridian (longitude 0°)
the difference in latitude is 53.41° - (-37.81°) = 53.41° + 37.81° = 91.22°
the difference in longitude = 144.96° - (-2.99°) = 144.96 + 2.99 = 147.95°
4. Is the relation represented on the graph a function? Explain
5. What is the slope of the line shown on the graph? Explain how you got your answer pls.
Thomas decides to use the method of proportions and similar
triangles to find the height of a lamppost. He measures the length of
the post's shadow and finds it is 5 feet long. Then, he holds a 1-foot
ruler perpendicular to the ground and finds that it casts a 2-inch
shadow. How tall is the lamppost?
a. 2.5 ft c. 30 ft
b. 12 ft d. 60 ft
Answer:
The lamppost is 30 ft tall.
Step-by-step explanation:
You need to draw a diagram of the problem. Refer to attachment.
Now you need to convert the measurements that are in feet to in. The 1 foot ruler is now 12 in. and the 5 foot post's shadow is now 60 in.
The next step is to create a proportion between both angles. [tex]\frac{x}{1} =\frac{60}{2}[/tex]
x over 1 is simplified to x and 60 divided by 2 is just 30. So the lamppost is 30 ft tall.
Hope that helped. :)
A stock price is losing value at a rate of 4 cents every minute. After 15 minutes, the price of the stock is $10.24 (1024 cents).
If i'm getting paid 20$ a week to clean my house, and i need 600$ to buy a dog how many weeks would i have to clean?
Answer:
30 weeks
Step-by-step explanation:
600/20
The following linear equation is shown: y = 2% + 5
Using this equation, what is the value of the missing space on the table
Oy=8
Oy=9
O y = 18
I don't know
Answer:
y=8
Step-by-step explanation:
Answer:
13
Step-by-step explanation:
Between 9 and 11 the gap is 2. Add 2 to 11 and you get 13
If you have time... HELP
Answer:
8/5
Step-by-step explanation:
opposite reciprocal
flip sign ±
flip numerator and denominator
help with these 3 questions
Answer:
1. A
Step-by-step explanation:
You would need to multiply 20 times 60, which equals 1800, then divide 1800 by 300 which will get you 4 halves, then make them wholes and you get 2
Help?
( this is not from a quiz. )
( also, this is science. )
my last question got answered and they told me answers not even related to the question.
Answer:
A
Step-by-step explanation:
if u count the number of spaces from the zero after the decimal point then make it negative becouse the zeros are behind it
i will mark you brainly just please help!
Answer:it a half inch down i then go a little down in then you have to put a dot on the spout in then you wait ill come back for more
Step-by-step explanation:
go to my page
Think about how you can use absolute value notation to express the distance between two points on a coordinate graph. For each pair of points below, find the distance between the given points and express your work using absolute value symbols. Show your work.
(4, 9) and ( –5, 9)
(7, –1) and (7, –4)
(0, 9) and (0, –7)
(4, –8) and (–10, –8)
Answer:
(4, 9) and (-10, -8)
Step-by-step explanation: