John believes that the amount of sleep he gets the night before a test and his score on that test are inversely related. On his first exam, he got eight hours of sleep and scored 70 on the exam. To the nearest tenth, how many hours does john believe he must sleep the night before his second exam so that the average of his two exam scores is an 80?.
John will need to sleep for 10.3 hours before his second exam so that the
average of his two exam scores is an 80.
We were given
8 hours of sleep = 70
To get average of 80
70+ x = 80
2
Cross multiply:
70+x = 160
x= 160-70
= 90.
If 8 hours of sleep = 70
x hours of sleep = 90
Cross multiply
8× 90 = 70 × x
720 = 70x
x = 720/70
x = 10.2857
≈ 10.3 hours of sleep
Read more about Equation here https://brainly.com/question/17202391
When o2 is released as a result of photosynthesis it is a direct by-product of.
Answer:
answer is water molecules
Explanation:
The oxygen evolved during photosynthesis comes from water molecules.
Answer:
The O2 released in photosynthesis comes from the H2O, not the CO2. This was proved by radioactive isotopes. I think this is what you are asking.
James is observing the population of the fish he put into a pond. He built a pond and populated it with 700 fish. The population of the fish doubles every year. Use x to represent the number of years and y to represent the population of the fish. Enter an equation that represents this scenario in the box.
Given that we have a pond with a population of 700 fish to observe from, we can use the exponential function to denote what the amount of fish will become after a particular interval of time.
Given data
Let C be the Initial population = 700
Let the number of fishes be represented as x
And let the number of years be represented as y
Hence, the expression used to represent the population of fishes is described below.
[tex]y = f(t) = C*2^{t}[/tex]
Learn more:
https://brainly.com/question/16088078
Which of the following variables would be appropriate for a bar graph?.
Answer: your not showing any variables
Explanation:
The term commonly used in accounting to describe the format for recording a transaction is:.
Answer:
General ledger
Explanation:
General ledger is used to record all of a companies transaction
How did the new jersey plan address the issue of representation brainly.
Answer:
By thinking Their brain is very Big that's how i think so
Answer:
That's the answer thanks for the points
Explanation:
Hope it helps
It is estimated that 32 patrons will attend an event for every $100 spent in advertising. If tickets cost $75, how much can a promoter expect to increase sales if he spends $25,000 in advertising?.
In order to increase sales if he spends $25,000 in advertising, the promoter should be expecting 600,000 dollars
If It is estimated that 32 patrons will attend an event for every $100 spent in advertising.
The cost of tickets = $75,
If he spends $25,000 in advertising, divide the amount by 100 dollars
25000/100 = 250
This means 32 x 250 = 8000 patrons is estimated to attend an event.
Since each ticket cost 75 dollars, then, the promoter should expect to increase sales by multiplying 75 dollars by 8000 patrons. That is,
75 x 8000 = 600,000 dollars
Therefore, the promoter should be expecting 600,000 dollars to increase sales if he spends $25,000 in advertising.
Learn more about advertisement here: https://brainly.com/question/25556823
Plz don’t answer if you don’t know the answer and thank you if you helped me god may bless u
From Father's Choice
(Page 56)
Father avoids Mother when she is ill rather than trying to cure or even comfort her before
dying. Write a paragraph explaining what you think is going on in his mind.
Book: Mechanica by Betsy Cornwell
Answer:
Explanation:
The Father is proably tramatized but he wants to stay strong for mother,considering the fact that she is about to die. He is proably very hesterical but, must stay strong because it will make mother sad,and she will die dissapponted. He is thinking that if he cries or if he tries to make it better it will only make the situation worse. He feels like e is going to ruin something if he tries to stay with Mother. It's better to stay away because it's only gonna hurt Father because Mother is already heading home.
Suppose you start to eat some potato chips from an open bag that you found in your locker and noticed that the chips taste and smelled unpleasant. What process has resulted from the unpleasant chips?.
rancidity . reason : bcz it is the aerial oxidation of oil and fats present in the chips .
In colonial america who were the sons of liberty brainly.
Plagiarism is unethical because it implies that __________. A. All of the sources used are only helpful for limited purposes b. The author being plagiarized endorses the plagiarized work c. The work that one has plagiarized is an original creation d. One doesn’t care about the confidentiality of the research please select the best answer from the choices provided a b c d.
Answer: D
Explanation:
I know for sure it is not c because if you can plagiarize something that has already been plagiarized therefore it is not original work
What is the slope of the line that passes through (5 4) and (7 10).
Answer:
m=y2-y1/x2-x1=10-4/7-5
=6/2
=3
slope =3
In "a march in the ranks hard-prest, and the road unknown," readers can infer the speaker is shocked by the scene he encounters when his troop stops at the church. Which lines from the poem support this inference?.
There are different ways to support an inference. The lines from the poem that support this inference is “These I resume as I chant, I see again the forms, I smell the odor,”.
To support the inference is simply known as way or act through which one can draw or reach a specific conclusion about something from different facts gathered.A March in the Ranks Hard-Prest, and the Road Unknown is known to be a poem that was written by Walt Whitman.
See full question below
In “A March in the Ranks Hard-Prest, and the Road Unknown,” readers can infer the scene inside the church will leave a lasting impression on the speaker.
Which excerpt from the poem supports this inference?
“The glisten of the little steel instruments catching the glint of the torches,”
“By these, crowds, groups of forms vaguely I see on the floor, some in the pews laid down,”
“Our army foil’d with loss severe, and the sullen remnant retreating,”
“These I resume as I chant, I see again the forms, I smell the odor,”
Learn more about a march in the ranks hard-prest from
https://brainly.com/question/25211459
Amylase is an enzyme that converts carbohydrate polymers into monomers. Glycogen synthase is one of the enzymes involved in converting carbohydrate monomers into polymers. Which of the following best explains the reactions of these enzymes?.
Amylase break covalent bonds whereas glycogen synthase form covalent bonds.
Amylase is an enzyme that aids in the addition of a water molecule to break covalent bonds thereby converting carbohydrate polymers into monomers whereas glycogen synthase aids in the removal of a water molecule to form covalent bonds converting carbohydrate monomers into polymers.
Find out more on enzyme at: https://brainly.com/question/361714
How did using metal help ancient chinese people increase food production.
How many newtons of force are needed to accelerate a 1,875 kg object at a rate of 1. 5 m/s2?.
Answer:
2812.5 N
Explanation:
We know that
F = ma
F = 1875 × 1.5
F = 1875 × 15/10
F = 2812.5 N
Answer:
Hope this helps
Explanation:
2812.5N
The nitrogen atoms in a molecule of n2 share a total of.
Answer: 6!!!
Explanation:
Sun estimated the quotient of –23. 514 and –3. 98 by rounding each to the nearest integer. Which equation shows the correct estimation? negative 23. 514 divided by negative 3. 98 negative 24 divided by negative 4 = 6 negative 24 divided by 4 = negative 6 24 divided by 3 = 8 24 divided by negative 3 = negative 8.
Answer:Sun estimated the quotient of –23. 514 and –3. 98 by rounding each to the nearest integer. Which equation shows the correct estimation? negative 23. 514 divided by negative 3. 98 negative 24 divided by negative 4 = 6 negative 24 divided by 4 = negative 6 24 divided by 3 = 8 24 divided by negative 3 = negative 8.
Explanation: 64
Which best describes how the human circulatory and respiratory systems interact.
Answer:
The respiratory system provides oxygen for cells, while the circulatory system transports oxygen to cells. C. The respiratory system breaks down food for cell energy, while the circulatory system rids the body of waste.
Which applicants would be best suited for which jobs based on educational and training?.
Mona is best suited for the job which is Stationary Engineer Because She have experience as a Pump operator, she is best suited for system operator and also power distributor.
All these are the works of a Stationary Engineer.
Who is a Stationary Engineer?A Stationary Engineer is a person who is trained to operate, repair and maintain Boiler, pumps and heat pumps.
Therefore,Mona is best suited for the job which is Stationary Engineer Because She posses relevant skills and experience as Pump operator, system operator and also power distributor.
The question is incomplete but the options was gotten from brainly website.
Here are the options.
Boris is best suited to be an Electrician, Jody is best suited to be a Hydroelectric Production Manager, Mona is best suited to be a Power Dispatcher, and Boyd is best suited to be a Pipefitter. Boris is best suited to be a Petroleum Engineer, Jody is best suited to be a Meter Reader, Mona is best suited to be a Pump Operator, and Boyd is best suited to be a Stationary Engineer. Boris is best suited to be a Surveyor, Jody is best suited to be an Electrical Power-Line Installer, Mona is best suited to be a Systems Operator, and Boyd is best suited to be a Boiler Operator. Boris is best suited to be a Power Distributor, Jody is best suited to be a Petroleum Engineer, Mona is best suited to be a Power Distributor, and Boyd is best suited to be a Geothermal Technician.
There is no verified link for verified answer on Stationary Engineer on brainly.
Answer:
Im gonna say A
Im very very sorry if Im incorrect
anyway
AVOCADOS FROM MEXICO
Explanation:
Never set the tiger free if you live in the mountain.
The above is a proverb that essentially means that we should not engage in actions that might hurt us later.
Hypothetically speaking, you live in a mountain and one of your traps was able to capture a tiger; you then set that tiger free out and one day it attacks and kills you.
If you had killed the tiger after you caught it, you would still be alive. This is the purpose of the proverb - to say that if you have an opportunity to avoid future danger, take it.
In conclusion, deal with things now before they become problems later.
Find out more about this proverb at https://brainly.com/question/9704672.
A force of 30 n stretches a very light ideal spring 0. 73 m from equilibrium. What is the force constant (spring constant) of the spring?.
According to Hooke's law, a 30-N force stretches a spring by 0.73 m if the spring constant k is such that
30 N = k (0.73 m)
k = (30 N) / (0.73 m)
k ≈ 4.1 N/m
In order to clear out room for new merchandise, james decided to mark down some of the items for sale in his electronics store. He marked down dvd players by 36%, and he marked down stereo tuners by 22%. If dvd players cost $41. 60 after the markdown and stereo tuners cost $69. 42 after the markdown, which item’s price was reduced by more, and by how many dollars more was it reduced? round all dollar values to the nearest cent. A. The dvd player’s price was reduced by $3. 82 more than the stereo tuner’s price. B. The dvd player’s price was reduced by $27. 82 more than the stereo tuner’s price. C. The stereo tuner’s price was reduced by $0. 29 more than the dvd player’s price. D. The stereo tuner’s price was reduced by $27. 53 more than the dvd player’s price.
The dvd player’s price was reduced by $3. 82 more than the stereo tuner’s price.
Let the cost price of dvd players be D.Let the cost price of stereo tuners be S.Given the following data:
Markdown for dvd player = 36%Markdown for stereo tuner = 22%Markdown cost for dvd player = $41.60Markdown cost for stereo tuner = $69.42To determine which item’s price was reduced by more, and by how many dollars:
First of all, we would calculate the cost price of each item.
For dvd players:
Note: You'll pay 64% since it was markdown by 36%.
[tex]\frac{64}{100} \times D = 41.60\\\\64D=41.60 \times 100\\\\64D=4160\\\\D=\frac{4160}{64}[/tex]
D = $65
Reduction: Dvd player = [tex]65-41. 60=[/tex] $23.40
For stereo tuners:
Note: You'll pay 78% since it was markdown by 22%.
[tex]\frac{78}{100} \times S = 69.42\\\\78S=69.42 \times 100\\\\78S=6942\\\\S=\frac{6942}{78}[/tex]
D = $89
Reduction: Stereo tuner = [tex]89-69. 42=[/tex] $19.58
Now, we can calculate the difference in reduction of the cost price of both items:
[tex]Difference = 23.4 -19.58[/tex]
Difference = $3.82
Therefore, the price of the dvd players was reduced by $3. 82 more than the price of the stereo tuners.
Read more on markdown here: https://brainly.com/question/11676563
Which method of analysis does not classify variables as dependent or independent.
The method of analysis does not classify variables as dependent or independent is cluster analysis.
Cluster analysis is a method that is used to process data in statistics. In cluster analysis, data is classified into groups based on similar characteristics the data share. For example, if cluster analysis is used to group students, students may be divided into clusters based on their gender or class.
An independent variable is the variable that is manipulated by the researcher. It is the variable that is tested to determine its effect on the dependent variable.
The dependent variable is the variable that is being measured in an experiment.
To learn more about clustering, please check: https://brainly.com/question/20432243
How should you protect a printed classified document.
Answer:
There are many ways you could answer this question.
Explanation:
If it is a physicl copy, you should store it with your other important doncuments of course, or have protective sheets on or around it for safety. If you are talking legally, a notarized document is always going to be more official that a non notarized document, so if you get it notarized, then you can protect yourself and the importance of the document legally.
The bottleneck effect is the loss of genetic diversity that occurs when.
The amount and the concentration of a salt solution.
Answer:
28 g
3.4 g
Explanation:
These problems only make sense if the percentage is by weight. To find the amount of salt, multiply the amount of solution by the percentage that is salt:
a) (80 g)(35%) = 28 g . . . . weight of salt
__
b) (20 g)(17%) = 3.4 g . . . . weight of salt
_____
Comment on percent
You know that % means /100, so 35% = 35/100 = 0.35.
Heitor was exposed to a bomb blast and has a focal brain injury to the human analog of area mt. When presented with visual stimuli heitor would not show:.
Considering the situation described above, when presented with visual stimuli heitor would not show emotion or empathy.
What is the effect of Focal Brain Injury?
The effect of Focal brain injury has been found to cause damage to the frontal pole causing changes in the individual's behavior and emotions.
Generally, A focal brain injury in a person has been attributed to the inability to recognize other people's emotions or another person's feelings.
Hence, in this case, it is concluded that the correct answer is "heitor would not show emotion or empathy."
Learn more about Focal Brain Injury here: https://brainly.com/question/1445399
Write a function called has_duplicates that takes a string parameter and returns true if the string has any repeated characters. Otherwise, it should return false.
The function to solve the algorithm that is required to return Boolean (True of False) if the parameter contains duplicate character will be implemented using the Kotlin Programming Language.
// Here is the algorithm
fun has_duplicates (parameter: String) : Boolean{
for (i in parameter.size-1){
if(parameter[i]==parameter[i+1]){
return true
} else{
return false
}
}
}
Learn more about Algorithm and Data structure Here:
https://brainly.com/question/24268720
Read this excerpt from king arthur's socks: a comedy in one act. Guenevere: (unable to bear it) please, mary, please! what does the stage direction reveal about guenevere? she is not sympathetic to the plight of women who do not conform. She is too busy with her darning to be concerned with the help. She is upset with her servant’s romantic attitude. She is not ready to hear any more modernistic ideas.
Answer: D. She is not ready to hear any more modernistic ideas.