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
Natasha_Volkova [10]
3 years ago
9

While working the evening shift, Officer Kay took 8 hours to complete a task at her work station and Officer Ming took 10 hours

to complete the same task at his work station. How many hours would it take Officer Kay and Officer Ming to complete the same task working together, each working at their own work station?
Social Studies
1 answer:
Marina CMI [18]3 years ago
8 0

Answer: Approximately 4 hours and 27 minutes.

Explanation: Let Officer Kay's hours be represented by 1/8

and Officer Ming's hours be represented by 1/10.

That means that Officer Kay completes 1/8 of the job in 1 hour and Officer Ming completes 1/10 of the job in 1 hour.

If they work together,

It would be 1/8 + 1/10 =

Finding the LCM of the denominator, which is 80,

Addition of 1/8 and 1/10 is 9/40.

Let T be the amount of time it takes the two of them to finish the job,

then 9/40 of the job x T (expressed in hours) has to equal 1 job.

So, (9/40) x T = 1,

therefore T = 40/9 = 4.444 or 4 and 4/9.

Converting 4.444 to hours and minutes, we have 4 hours 27 minutes.

This means it would take 4 and 4/9 hours (about 4 hours and 27 minutes) for Officers Kay and Ming to complete the task together.

You might be interested in
Which step in the procedure of a criminal case is when the prosecution presents evidence to a judge or a jury?
Kamila [148]
C. Sentencing bc they have to know how long to punish the suspect
3 0
3 years ago
Read 2 more answers
What is the purpose of the legislative branch?
sergiy2304 [10]

Answer:

A)make laws

Explanation:

4 0
3 years ago
Succeeding through vocational and avocational activities is also an important source of self-esteem and the self-concept. which
madreJ [45]

Answer:

Achieving self  

Explanation:

Achieving self is the term used in positive psychology. Achieving self can be improved by doing some worth activities such as vocational and avocational activities. These activities improve the self-esteem and self-confidence of a person.  

There are some tips to improve self-achievement:

  • First to select a goal that should be worth living.
  • Make a plan that you can follow in action.  
  • To keep track of your achievement.
  • To cultivate the optimism
  • To become self-aware
  • To do the practice the positive talk.  

4 0
3 years ago
Which body of the us government has 100 members
DIA [1.3K]

The body of government that has 100 members is the senate, 2 from each state which equals 100.

3 0
3 years ago
Read 2 more answers
Who was the first secretary general of UN​
alekssr [168]

trygve lie who was the first secretary general of UN

6 0
3 years ago
Other questions:
  • True or False. The worldwide need to provide an adequate supply of clean water has become an urgent theme in anthropology. Anthr
    11·1 answer
  • Talking, providing support, coaching, and other procedures that relieve maladaptive behaviors can all be part of , which helps i
    12·2 answers
  • According to this document, what effect did the crash have on banks?
    14·1 answer
  • When was the age of Buddhism in China?
    10·1 answer
  • Which financial activity helps a company based in another country?
    13·1 answer
  • What were some of the political issues involved in building the CPR?
    6·1 answer
  • Which of the following describes changes in the brain of a person who is addicted to alcohol or other drugs? #1. The reward/cont
    10·1 answer
  • Why were treaties so important to the us?
    8·1 answer
  • HELP PLEASE QUICK !!!
    6·2 answers
  • The booming stock market of the 1920s was
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!