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
Como era la sociedad francesa a finales del siglo xviii
Alik [6]
Causa social: la sociedad francesa se dividió en tres estados, los dos primeros consistieron en el clero y la nobleza, respectivamente, el tercer estado. Los miembros de la 3ª propiedad tienen dificultades mientras que la 1ª y la 2ª propiedad gozan de varios privilegios.

Causa económica: el tercer estado tenía que pagar todos los impuestos mientras que los otros estados estaban exentos del mismo. Los precios del pan aumentaron, que era la principal dieta básica de la gente y hubo una crisis de subsistencia

Causa inmediata: Se rumorea que el rey ordenará a sus tropas atacar París y luego 4000 a 5000 personas se reunieron y formaron la milicia popular. Louis XVI Louis XVI se convirtió en el heredero del trono y el último rey borbónico de Francia tras la muerte de su padre en 1765. En 1770, se casó con la archiduquesa austríaca María Antonieta, la hija de María Teresa y el emperador romano santo Francisco I. Después de una gran caída de errores en el gobierno, Luis XVI trajo la Revolución Francesa estrellándose contra sí mismo, y en 1793 fue ejecutado. Su esposa, María Antonieta, fue ejecutada nueve meses después. Las 3 fincas En el viejo orden, los grupos sociales se llamaron las fincas
7 0
3 years ago
What are some duties that you need to fulfill as a citizen in order to ensure the health and safety of your community, nation, a
umka21 [38]
Some duties that you “need” to fulfill as a citizen in order to ensure the health, community, nation and fellow citizens is to clean the community, recycle and do your part.
3 0
2 years ago
The minimum diameter of galvanized pipe allowed for a grounding electrode is______.
DaniilM [7]

The minimum diameter of galvanized pipe allowed for a grounding electrode is 3/4

This is further explained below.

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

Generally, An electrolyte, a semiconductor, or a vacuum are all examples of non-metallic circuit components that may be contacted by an electrode. Electrodes are electrical conductors that make contact with these components. In the context of an electrochemical cell, this component may alternatively be referred to as an anode or a cathode.

In conclusion, 3/4 of an inch is the smallest diameter of galvanized tubing that may be used as a grounding electrode.

Read more about electrode

brainly.com/question/17060277

#SPJ1

5 0
2 years ago
Measuring the return of education is :
Elza [17]

Answer:

b

Explanation:

thts the only logical explenation

6 0
3 years ago
Whose actions sparked the Montgomery bus boycott?
alukav5142 [94]
The arrest of Rosa Parks on December 1, 1955
7 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP ME ASAP I NEED ALL THE ANSWERS PLEASEEEEEEEEEE
    12·1 answer
  • Which factors does a judge consider when deciding the sentence in a criminal case? Check all that apply.
    12·1 answer
  • In a 1946 speech, Winston Churchill used the term "Iron Curtain" to describe differences in eastern and western Europe. Which di
    14·1 answer
  • Ralph, a white student who grew up in Maine, is about to enter the University of Southern California on an athletic scholarship.
    15·1 answer
  • Sara is a new employee and has a colleague who frequently comes by her desk and stops to talk. He leans in and shares stories of
    13·1 answer
  • Fter completing school to become a scribe, the student would need to be an apprentice. What is an apprentice?
    6·2 answers
  • Please guys help please it is<br><br><br><br> fill in the blank<br>​
    13·1 answer
  • Page<br>नेपालमा सञ्चालित विकास<br>आयोजनाहरू पूर्व निर्धारित समरमा<br>सम्पन्न गर्न के गनुपला ।​
    6·2 answers
  • What did Annemarie and Ellen see on the beach at Uncle Henrik's? (Number the stars)
    8·1 answer
  • In which type of symbiosis do BOTH species benefit from each other?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!