1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
algol13
3 years ago
12

A sink has two faucets: one for hot water and one for cold water. The sink can be filled by a cold water faucet in 4 minutes. If

both faucets are open, the sink is filled in 3 minutes. How long does it take to fill the sink with just the hot water faucet open?
Social Studies
1 answer:
mojhsa [17]3 years ago
7 0

Answer:

Given:

Cold water faucet fills the sink in 4 minutes.

Both faucets fills the sink in 3 minutes.

Let us assume that "t" be the time it takes hot water faucet in order to fill the sink.

Therefore;

<em>Rate for hot water faucet fills the sink = \frac{1}{time} = \frac{1}{t} </em>

<em>Rate at which cold water faucet fills the sink = \frac{1}{time} = \frac{1}{4} </em>

When both faucets are used , the rate at which they fill the sink is given as :

<em>\frac{1}{t} + \frac{1}{4} = \frac{1}{3} </em>

On solving the above equation, we get :

<em>4t = 3t +12</em>

<em>∴ t = 12\ minutes</em>

<em>Therefore, it takes 12 minutes for the hot water faucet to fill the sink.</em>

<em></em>

You might be interested in
___ is an integrated approach to drug treatment which recognizes that psychological, social, and biological factors each play a
valina [46]
Drug treatment/therepy is the correct answer
6 0
3 years ago
GIVING BRAINLIEST
Vera_Pavlovna [14]

Answer:

C

He invaded Austria and Poland.

4 0
3 years ago
Read 2 more answers
How was Uruk economy different from the economy of catalhoyuk
ziro4ka [17]

Answer:

Catalhoyuk's economy was based mainly on farming. Uruk's, in contrast, was much more complex and based on both farming and trade. Workshops produced all sorts of goods, which were sold in shops on the streets. Also, Uruk merchants traveled far and wide, selling their products.

Explanation:

3 0
3 years ago
The basic economic problem of scarcity
Juli2301 [7.4K]

Answer:

C. Has Always Existed and will continue to exist.

Explanation:

Scarcity is still present. More goods and services are created today than ever before, yet the increase in wants exceeds the increase in economic capabilities. People continue to seek more items than the available resources can produce.

<u><em>Hope This Helps! Please Mark Brainliest!</em></u>

5 0
2 years ago
Read 2 more answers
Click to read the "Correlation vs. Causation" article. In your own words, explain the problem of correlation vs. causation. Why
Katyanochek1 [597]

Answer:

Correlation and causation are two very different things

Explanation:

Correlation means that two or more factors are dependent on each other in a way that one can be predicted with the help of the other. On the other hand, causation means that one thing causes another. For instance, a correlation between ice cream consumption and hot weather means that when its hot people eat ice cream more and in less hot weather people eat less ice cream. But if this correlation is confused with causation between ice cream demand and hot weather then it would mean that eating ice cream causes hot weather which will not be correct. Also for causation, three criteria should be met which are correlation, no effect of third extraneous variable and this casual effect should precede all other rational effects.

6 0
3 years ago
Other questions:
  • Than
    8·1 answer
  • So-called utopian communities (communities of mostly religious reformers who sought to reorganize society and restore social har
    15·2 answers
  • A teacher with stage fright, a student with test anxiety, a salesperson who fears people, or a newlywed with an aversion to sexu
    5·1 answer
  • Characteristics of popular culture
    10·1 answer
  • How did the battle of bull run reflect the beginnings of a broad pattern of leadership in the North and the South?
    12·2 answers
  • According to wittgenstein, disputes among philosophers and psychologists typically occur when:
    6·1 answer
  • Explain in your own words what "native population" means. Give an example in your explanation.
    12·1 answer
  • What was George Washington's opinion about Foregien Policy? Explain what his vision for the future of the country was, is that w
    13·1 answer
  • According to the Treaty of Versailles, which nation was entirely to blame for the start of World War 1?
    7·2 answers
  • Writing a Strong TIEAC Paragraph
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!