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Amy can clean the house in 7 hours When she works with Tom the job takes 5 hours How long would it take Tom working by himself to clean the house?
Wiki User
∙ 14y ago
Assuming that each of Amy and Tom works at a constant rate, in units of fractions of the house per hour, irrespective of the amount of cleaning remaining to be done and that the work is sufficiently nearly uniform that either Amy and Tom can complete each part of it at his or her own constant rate, then if Amy's rate is designated by a and Tom's rate by t, then 7a = 1 and 5a + 5t = 1. subtracting the second of these equations from the first yields 2a - 5t = 0, t = (2/5)a. Therefor, Tom works only 2/5 as fast as Amy, so that Tom by himself would require 7/(2/5) = 7(5/2) or 17-1/2 hours to clean the house by himself.
Wiki User
∙ 14y ago
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If Sally can paint a house in 4 hours and John can paint the same house in 6 hour?
2 Hours & 24 minutes
If Joe can paint a house in 3 hours and Sam can paint the same house in 5 hours how long does it take for them to do it together?
Joe can paint the house in 3 hours so Joe paints 1/3 house in an hour. Similarly, Sam paint 1/5 of the house in one hour. So together (assuming no synergy) they paint 1/3 + 1/5 = 8/15 of the house in an hour. So they take 15/8 = 1 + 7/8 = 1.875 days to paint it.
It takes 5 hours for 3 guys to paint a house. The 3 guys paint for 3 hours and then 3 more guys help finish the house. How much time is saved and why?
One hour is saved. The three guys need two more hours to finish. If three more guys help them, it will cut the time in half. 3 guys * 5 hours = 1 house painted guy * hour = 1 hour of labor So it would take 15 hours of labor to paint a house. We need to assume houses take the same time to paint and each guy works at the same rate. 3 guys * 3 hours = 9 hours of labor 9 hours of labor + (3+3) guys * x hours = 15 hours of labor 9 + 6x = 15 x=1 Total time = 3 hours of 3man + 1 hour of 6 man = 4 hours time saved = 5-4 = 1 hour
Linda drove to her boyfriends house and found him waxing his car This job usually takes him 3 hours She wanted her boyfriend to take her to the show which was starting in 2 hours She offered to he?
1.7 hours
Jim rode 3 hours to his friend's house the return trip home took 4 hours because he was going 2mph slower how fast was he traveling to his friend's house how fast was he traveling on the way home?
r * t = d We know that the distance was the same. So, where x = the rate on the way to his friend's house: Trip there = Trip back x * (3 hours) = (x-2) * (4 hours) -or- 3x = 4(x-2) 3x = 4x - 8 8 = x He was traveling 8 mph on the way there. The distance was 24 miles (8 mph * 3 hours. He was traveling 6 mph on the way home, which makes sense because it would take 4 hours to travel 24 miles while traveling 6 mph.
Jane needs 3 hours to clean the Smith house Her younger sister Alice can clean the house in 5 hours How long would the sisters working together need to clean the house?
~1.9 hours
It takes Samantha 4 hours to clean her house Her husband Patrick can clean the house in 7 hours How long would it take both of them to clean the house?
2.54545454 or 2 6/11 hours.
What movie and television projects has Mark Brunetz been in?
Mark Brunetz has: Played Designer in "Clean House" in 2003. Performed in "Clean House" in 2003. Played Guest Designer in "Outer Spaces" in 2003. Played himself in "50 Most Outrageous TV Moments" in 2004. Performed in "Clean House Comes Clean" in 2007. Played Designer in "Clean House Comes Clean" in 2007. Played Himself - Host in "Tacky House" in 2009. Played Designer in "Messiest Home" in 2009. Played Himself - Organizational Expert in "The Nate Berkus Show" in 2010.
What to make a hard working mom?
make her breakfast.....clean the house for her....:)
I am very embarressed because my house is dirty i have been working all day and yesterday we had a party so i had no time to clean itcan you clean it for me?
WikiAnswers is a question and answer site, it can't provide someone to clean your house.
If a roofing contractor estimates that he can shingle a house in twenty hours and that his assistant can do it in thirty hours how long will it take them to shingle the house working together?
About 12.5 hours if they just work. Since there are now two people working, the gab factor could increase that to 40 hours.
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they can if they give you 24 hours written notice
What are Kevin hart's hobbies?
Going to the Laff house in Phildelphia after working hours at his job
What are the release dates for Clean House Comes Clean - 2007 Clean House Yearbook?
Clean House Comes Clean - 2007 Clean House Yearbook was released on: USA: 9 September 2010
What are the release dates for Clean House Comes Clean - 2007 Clean House Phobias?
Clean House Comes Clean - 2007 Clean House Phobias was released on: USA: 3 November 2010
What are the release dates for Clean House Comes Clean - 2007 Clean House Cast Favorites?
Clean House Comes Clean - 2007 Clean House Cast Favorites was released on: USA: 8 September 2010
What is the average pay for those working in house cleaning?
It all depends on if your working for yourself or working for someone else. Alot of buisnesses start at around 25 dolllars a hour to clean a house while paying their employees around 10-12 bucks a hour. If you work for yourself, its not unrealistic to set a 20 dollar per hour clean and make good money.
