A community for students.
Here's the question you clicked on:
 0 viewing
selma
 2 years ago
One pump can drain a pool in 7 minutes. When a second pump is also used, the pool only takes 5 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use? Round your answer to the nearest tenth.
a) 33.0 minutes
b) 2.9 minutes
c) 17.5 minutes
d) 24.1 minutes
selma
 2 years ago
One pump can drain a pool in 7 minutes. When a second pump is also used, the pool only takes 5 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use? Round your answer to the nearest tenth. a) 33.0 minutes b) 2.9 minutes c) 17.5 minutes d) 24.1 minutes

This Question is Closed

selma
 2 years ago
Best ResponseYou've already chosen the best response.0please someone help me :(

pythagoras123
 2 years ago
Best ResponseYou've already chosen the best response.0The answer is (c).

pythagoras123
 2 years ago
Best ResponseYou've already chosen the best response.0See: A can drain 1/7 of the pool in a minute. A and B can drain 1/5 of the pool in a minute. B can drain 1/7  1/5 of the pool in a minute Thus B can drain 2/35 of the pool in a minute. 35/2 is 17.5 minutes. Hence the answer is (c).
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.