Working together, 7 identical pumps can empty a pool in 6 hours. How many hours will it take 4 pumps to empty the same pool?

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions.

A community for students.

Working together, 7 identical pumps can empty a pool in 6 hours. How many hours will it take 4 pumps to empty the same pool?

Mathematics
See more answers at brainly.com
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions

@satellite73 can we take this one slow too?
sure unit rate again
So 7/6 will be how much 1 pump can empty a pool

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

careful
lets start with how much 7 pumps do per hour
isn't that what 7/6 finds?
7 pumps take 6 hours, so 7 pumps do \(\frac{1}{6}\) per hour
oh okay
how much does one pump do? don't multiply by 7, divide (like last time)
1/42
ok good now each pump does \(\frac{1}{42}\) per hour, how much does 4 pumps do (this time multiply)
4/42
right
or you can reduce to get \(\frac{2}{21}\)
hmmmm did we do something wrong? my answer say 42/4 = 10 1/2
you want to see how long it takes to do one job,
solve \[\frac{2}{21}T=1\] making \[T=\frac{21}{2}\]
no we didn't do anything wrong, we just were not done yet we got the unit rate at \(\frac{2}{21}\) but we need the total time
ohhh okay
they do 2/21 of a job per hour, takes 21/2 hours to do one job
ohhh okay
there may have been a quicker way to do this, but it is good to know how to get the unit rate so you can do all kinds of problems with it
hmmm ok
so do we now multiply by 4?
no now we are done
ohhh okay this is a different method i got it now
we got the unit rate of \(\frac{1}{42}\) that was pump per hour
then we multiplied by 4 to get the rate for 4 pumps and got \(\frac{2}{21}\)
ahhhh ic
then we solved \[\frac{2}{21}T=1\] the 1 being one pool
if it was two pools it would have been \[\frac{2}{21}=2\]
hmmm okay i think i understand now i'll review the last 2 problems we did a couple of times
ok if you get stuck let me know
i will thanks <333
we can make one up and do it now if you like
yes yes that would help even more
see that they are not that hard and are largely the same
yea
you want me to make it up, or you want to?
can u ?
k they numbers might not come out real nice if i make it up off the top of my head, but no matter
ok
it takes 5 hours for 8 men to build one wall how long would it take 10 men to build 2 walls (sexist i now but whatever)
first find the unit rate for one man let me know when you think you have it
1/8 divided by 5 = 1/40
yay!
now the rate for 10 men
1/40 * 10 = 10/40 = 1/4
ok good now how long to build 2 walls
1/4 * 2= 2/4= 1/2
aw damn we were doing so well
oh crap...
not going to take half an hour !
now we need to go slow either we solve \[\frac{1}{4}T=2\]
ohhhhhh yeaaaa thats right so 8
yup
ok i'll keep practicing this
almost got it 100% thanks satellite
ok, i think it is getting easier though right? first part went quick
yw

Not the answer you are looking for?

Search for more explanations.

Ask your own question