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yarga [219]
3 years ago
8

Adam can clean a room in 3 hours. If his sister Maria helps, they can clean it in 2 2/5 hours. How long will it take Maria to do

the job alone?
SAT
1 answer:
Contact [7]3 years ago
7 0
Adam can clean a room in 3 hours. If his sister Maria helps, they can clean it in 225 hours. How long will it take Maria to do the job alone?
2 2 = 12 Together time, 2 2 , needs to be converted to fraction 555
Adan:3,Maria:x,Total: 5 Clearlystatetimesforeachandtotal,usingxforMaria 12
1+1= 5 Usingreciprocals,addtheindividualtimesgivestotal 3 x 12
1

1(12x) + 1(12x) = 5(12x) 3 x 12
4x+12=5x −4x −4x 12=x It takes Maria 12 hours
Multiply each term by LCD of 12x
Reduce each fraction
Move variables to one side, subtracting 4x Our solution for x



Answer is - 12 hours
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You are studying the population growth of a species of fish. Assuming unlimited resources, no predators, and a constant per capi
ArbitrLikvidat [17]

The projected population size in 2030 will be : ≈ 44159

First step : determine the population growth rate

Gr = change in population / time

    = ( 1500 - 1100 ) / 1 year

    = 400 = 36%

<h3>Determine the projected population size </h3>

applying Malthus's population projection.

Pp = P₁ ( 1 + r )ⁿ

where ; P₁ = 1500, r = 0.36 , n = ( 2030 - 2019 ) = 11 years

Pp = 1500 ( 1 + 0.36 )¹¹

    = 1500 ( 29.439 )

    = 44158.5  ≈ 44159

Hence we can conclude that the projected population size as at 2030 is 44159

Learn more about projected population : brainly.com/question/25896797

7 0
2 years ago
If Pete can run five miles in one hour, how many hours would it take him to run 25 miles?
saw5 [17]
C. 5.
1 hour/5 miles
1 hour/5 miles 5x2=10
1 hour/5 miles
1 hour/5 miles 5x4=20
1 hour/5 miles
5x5=25
3 0
3 years ago
The following excerpt is from "the lamp of psyche" by edith wharton (published in 1895). In this passage, a newly remarried deli
vivado [14]

This is the description about Delia's character in the story by Edith Wharton:

Although I was no able to find the passage, there are some characteristics about Delia Benson Corbett that can be useful to analyze her choices and actions.

Delia was challenged mentally and emotionally by her first husband. However, she was able to leave her past behind. She uses her irony to deal with her past suffering and she also grew strength by focusing on her own and her job, as well as her belief in religion.

<h3>What is an essay?</h3>

In this exercise, you have to write the description about the passage using an essay structure.

An essay is a written text that can express an opinion about something. You need to do a research before writing an essay so you can get all the information to justify your opinions. In this case, you have to analyze the passage given.

This is an essay structure:

  • introduction: you could present the story and explain that there are choices and actions from Delia that can explain how is she a complex character.

  • body: here you have to analyze Delia's choices and actions and prove what you presented in the introduction.

  • conclusion: you can give a summary about the main idea of the essay.

Check more information on writing essays brainly.com/question/11473248

5 0
2 years ago
This world war ii poster was designed to encourage americans to avoid sharing information that could hurt the war effort. Which
Mrac [35]

There are different kinds of poster. The appeal are used in the poster is to "persuasion". The poster aim to influence or convince the soldiers to carry out their duties without any disturbance or noise.

There are different kinds of appeals in persuasion.  They are;

  • Ethos
  • Pathos
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Pathos is known to be as an appeal to emotions. This is because, it aim too persuade one's audience by appealing to their feelings.

Learn more about Appeal from

brainly.com/question/2497657

8 0
2 years ago
X+y=0
musickatia [10]
The correct answer is d hope i could help
6 0
3 years ago
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