A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
consider a water source that contains 60,000 gallons of water. Each day 9.4816 gallons of water are removed, but 95% of that water is returned on a daily basis. how long it take to run out fresh water, if water usage increase by 3% every year. write a function/equation
anonymous
 one year ago
consider a water source that contains 60,000 gallons of water. Each day 9.4816 gallons of water are removed, but 95% of that water is returned on a daily basis. how long it take to run out fresh water, if water usage increase by 3% every year. write a function/equation

This Question is Open

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0d0 = B d1 = B  a + ak d2 = (B  a + ak) a +ak = B  2a + 2ak d3 = B  3a + 3ak  dn = B  na + nak dn = B +na(k1)  0 = B +na(k1) B = na(k1) B/(a(k1)) = n

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0we are only losing 5% a day if 95% is returned dn = B na(.05) 0 = B na(.05) B = na(.05) B/a(.05) = n

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0but assuming we cant pull out a if there is less then a in there, we can work as: (Ba)/(a(.05)) now the questions is, should we allocate the 3% increase per year at the end of a year? or even it out over the course of the year?

amistre64
 one year ago
Best ResponseYou've already chosen the best response.0if we allocate it over a year, then a changes by (.03/365) each day dn = B +n(.05) a(1+.03/12)^(n1) seems fair
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.