Hi,

Sally can paint a room in 3 hours while it takes Steve 8 hours

Let x represent the time it takes together. Per hour the Equalizer

 1/3hr + 1/8hr = 1/x  Multiplying each term by 24x so as all denominators = 1

8x + 3x = 24

11x = 24

x = 2.18 hrs, the time it takes them together 

Answer by richard1234(7193)   (Show Source): You can put this solution on YOUR website!
 In one hour, Sally can paint 1/3 of a room and Steve can paint 1/8 of a room. Together, they paint 1/3 + 1/8 = 11/24 of the room in one hour. Therefore, it would take 24/11 hours (approx. 2.18 hours) to paint the entire room. 

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
 Sally can paint a room in 3 hours while it takes Steve 8 hours to paint the same room. How long would it take them to paint the room if they worked together? 

-----------------

Sally rate = 1/3 job/hr

Steve rate = 1/8 job/hr

Together rate = 1/x job/hr

---------------------------------

Equation:

rate + rate = together rate

1/3 + 1/8 = 1/x

8x + 3x = 24

11x = 24

x = 24/11 = 2 2/11 hrs

---

together time = 2 hr + (2/11)*60 min = 2 hr 10.9 min

==========================

Cheers,

Stan H.

================= 

RELATED QUESTIONS

Sally can paint a room in 9 hours while it takes steve 8 hours to paint the same room.... (answered by josmiceli)

Sally can paint a room in 5 hours while it takes Steve 8 hours to paint the same room.... (answered by vleith)

Sally can paint a room in 4 hours while it takes Steve 8 hours to paint the same room.... (answered by VFBundy,Alan3354)

sally can paint a room in 3 hours while it takes steve 9 hours to paint the same room.... (answered by stanbon)

sally can paint a room in 3 hours while it takes steve 9 hours to paint the same room.... (answered by mananth)

Sally can paint a room in 3 hours while it takes Steve 4 hours to paint the same room.... (answered by Edwin McCravy)

Sally can paint a room in 3 hours while it takes Steve 4 hours to paint the same room.... (answered by richwmiller)

Sally can paint a room in 4 hours while it takes Steve 3 hours to paint the same room.... (answered by josgarithmetic)

Sally can paint a room in 4 hours while it takes Steve 6 hours to paint the same room.... (answered by drk)