Question 1174455: (wors proplem)
A group of friends nailed it when it comes to video editing. Ana can edit a video in 7 days alone, while shereene can edit the sama video in 5 days. If shereene, Ana, and Eufemia decided to team up in editing the video that they wanted to submit in a contest, and finished it up for 2 days, how long will take if only Eufemia edit same video?
(question)
Is it a Rational Function? Rational inequality? Rational equation?
Answer by ikleyn(52921)   (Show Source):
You can put this solution on YOUR website! .
A group of friends nailed it when it comes to video editing. Ana can edit a video in 7 days alone,
while shereene can edit the sama video in 5 days. If shereene, Ana, and Eufemia decided to team up
in editing the video that they wanted to submit in a contest, and finished it up for 2 days,
how long will take if only Eufemia edit same video?
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Ana makes  of the job per day, working alone.
Shereene makes  of the job per day, working alone.
Ana, Shereene and Eufemia make  of the job per day, wotking together.
It is clear that the Eufemia's rate of work is the combuned rate of work of the three
MUNIS rate of work of "A" and "S"
 = use the common denominator 70 =  =  of the job per day.
Hence, Eufemia will complete the job in  days = 6  days, working alone. ANSWER
Solved.
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It is a standard and typical joint work problem.
There is a wide variety of similar solved joint-work problems with detailed explanations in this site. See the lessons
- Using Fractions to solve word problems on joint work
- Solving more complicated word problems on joint work
- Selected joint-work word problems from the archive
Read them and get be trained in solving joint-work problems.
Also, you have this free of charge online textbook in ALGEBRA-I in this site
- ALGEBRA-I - YOUR ONLINE TEXTBOOK.
The referred lessons are the part of this textbook under the topic
"Rate of work and joint work problems" of the section "Word problems".
Save the link to this online textbook together with its description
Free of charge online textbook in ALGEBRA-I
https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson
to your archive and use it when it is needed.
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