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Tutors Answer Your Questions about Rate-of-work-word-problems (FREE)
Question 620951: an inlet pipe on a swimming pool can be used to fill a pool in 32 hours. The drain pipe can be used to empty the pool in 48 hours. If the pool is 1/3 filled and then the inlet pipe and drain pipe are opened, how long from that time will it take to fill the pool?
Click here to see answer by solver91311(24713)  |
Question 620951: an inlet pipe on a swimming pool can be used to fill a pool in 32 hours. The drain pipe can be used to empty the pool in 48 hours. If the pool is 1/3 filled and then the inlet pipe and drain pipe are opened, how long from that time will it take to fill the pool?
Click here to see answer by lwsshak3(11628) |
Question 621185: A trundle wheel has a diameter of 20cm
A. Find the radius of the wheel in cm.
B. taking 'n' as 3.142 calculate in cm the circumference of the trundle wheel.
C. The wheel was used to measure the length of the corridor and it made 24 complete turns, what was the length of the corridor? Give your answer in meters, correct to the nearest metre.
Click here to see answer by Alan3354(69443)  |
Question 621276: Printing Press A starts working on a job at 8:00 am. Working alone, press A would take 24 hours to do the job. At 9:30 am, press B also begins to run the same job as A. Press B is twice as fast as press A. What time will the job be completed?
Click here to see answer by josmiceli(19441)  |
Question 621720: A hose takes 15 minutes to fill a swimming pool and the drain empties the pool in twenty minutes. How long will it take to fill the pool if the drain is accidentally left open?
I need to know how you got the answer also! Please help!!
Click here to see answer by lynnlo(4176) |
Question 621720: A hose takes 15 minutes to fill a swimming pool and the drain empties the pool in twenty minutes. How long will it take to fill the pool if the drain is accidentally left open?
I need to know how you got the answer also! Please help!!
Click here to see answer by Alan3354(69443)  |
Question 621623: Two drains takes 9 hours each to completely remove the water from similar-sizes(same volume) pools. The first drain was opened at 6 a.m. Two hours after, the second drain is opened. At what time will the remaining volume in the second pool be three times the remaining volume in the first pool?
Click here to see answer by ptaylor(2198)  |
Question 621623: Two drains takes 9 hours each to completely remove the water from similar-sizes(same volume) pools. The first drain was opened at 6 a.m. Two hours after, the second drain is opened. At what time will the remaining volume in the second pool be three times the remaining volume in the first pool?
Click here to see answer by lwsshak3(11628) |
Question 139312: Could someone please help me with solving this homework problem. Thank you.
Two workers can trim 400 meters of hedge in 10hrs. How long will five workers take to trim 600 meters of hedge?
Click here to see answer by kanza(1) |
Question 623280: Please help I have no idea how to solve this and my teacher waants it worked out it's due tomorrow morning at 9am
``In the town of cantonville, the supermarket, the department store, and the bank are open together on only one day each week.
1. The supermarket is open five days a week.
2. The department store is open four days a week.
3. The bank is open three days a week.
4. On three consecutive days:
the bank was closed on the first day,
the department store was closed on the second day, and
the supermarket was closed on the third day.
5. On Sunday all three places are closed.
6. The bank is not open on two consecutive days.
7. The department store is not open on three consecutive days.
8. The supermarket is not open on four consecutive days.
9. Neither Saturday nor Monday is the day on which all three places are open
''.
Click here to see answer by richwmiller(17219)  |
Question 623371: my question: a man and a boy complete work together in 24 days. if for the last 6 days man alone does the work then it is completed in 26 days, how long will the boy takes to complete the work?
........Please help me out in detail answer, and formula. thank you. god bless
Click here to see answer by ewatrrr(24785)  |
Question 624132: George can rake a lawn in 5 hours. George and Juan together can rake the lawn in 2 hours. How long would it take for Juan to rake the lawn by himself? Use the following equation to solve this problem where J represents the time it would take Juan to rake the lawn:
2/5 + 2/J =1
Click here to see answer by nerdybill(7384)  |
Question 624215: The height h (in meters) of a cannonball t seconds after it is fired from a cannon is described by the equation h(t)=-49t^2+60t.
a. What is the height of the cannonball after 4 seconds?
b. How long will the cannonball be in the air?
c. How long does it take the cannonball to reach its maximum height?
d. What is the maximum height of the cannonball?
Click here to see answer by ewatrrr(24785)  |
Question 624440: A small swimming pool can be filled with water by 2 pipes in 3 hours. If the larger pipe alone takes 8 hours less than the smaller pipe to fill the pool find the time in which it will be filled by each pipe operating singly.
Click here to see answer by ewatrrr(24785)  |
Question 625675: I apologize if this is the wrong topic selection for my question. It was the best I could find. If I should ask elsewhere, could you tell me which topic I should choose?
My question is: 'Person A can complete a job in four hours. Person b can complete the job in 6 hours. Working at the same rate, How many hours will it take both of them to complete the job?'
I don't believe it is as easy as just adding the two together. Is it just finding the mean of the two working times; (6 hours + 4 hours)/2 ?
Click here to see answer by sudhanshu_kmr(1152)  |
Question 625760: The time it takes to remove all of the campaign signs in Metropolis after an election varies inversely with the number of volunteers working on the job. If 10 volunteers could complete the job in 6 days, then how many days would it take for 8 volunteers
Click here to see answer by Alan3354(69443)  |
Question 625894: A. Graph the function ƒ(x) = x3 - 4x + 2.
B. Find the domain and range of ƒ, showing all work or explaining your rationale.
C. Find the derivative of ƒ, showing all work.
D. Find the slope of the graph of ƒ at x = 0, showing all work.
E. Let ƒ represent the position of an object with respect to time that is moving along a line. Identify when the object is moving in the positive and negative directions and when the object is at rest, showing all work.
Click here to see answer by Edwin McCravy(20054)  |
Question 625894: A. Graph the function ƒ(x) = x3 - 4x + 2.
B. Find the domain and range of ƒ, showing all work or explaining your rationale.
C. Find the derivative of ƒ, showing all work.
D. Find the slope of the graph of ƒ at x = 0, showing all work.
E. Let ƒ represent the position of an object with respect to time that is moving along a line. Identify when the object is moving in the positive and negative directions and when the object is at rest, showing all work.
Click here to see answer by AnlytcPhil(1806)  |
Question 626459: Jay’s basement flooded last night. He has two pumps he can use to drain the water.
Pump #1 can drain the basement in 5 hours. Working together, the two pumps can
drain the basement in 2 hours. How long would it take Pump #2 to drain the basement
working alone?
Click here to see answer by nerdybill(7384)  |
Question 626930: Carpenters A and B can complete a piece of furniture if they work together for 4 days .They can also finish the work if A works 2 days and B works 6 days.How does it take each of them to finish the furniture alone?
Click here to see answer by psbhowmick(878)  |
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