A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
nnette can repair a refrigerator in 60 minutes. Liza can repair a refrigerator 20 minutes faster. If they work together, how many minutes does it take them to repair the refrigerator?
anonymous
 one year ago
nnette can repair a refrigerator in 60 minutes. Liza can repair a refrigerator 20 minutes faster. If they work together, how many minutes does it take them to repair the refrigerator?

This Question is Closed

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Annette: 1 repair in 60 minutes In 1 minute, she does 1/60 of the repair Liza: 1 repair in 20 minutes. In 1 minute, she does 1/20 of the repair Working together, it takes them x minutes to repair the refrigerator, so in 1 minute, they do 1/x of the refrigerator repair. 1/60 + 1/20 = 1/x
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.