SOLUTION: please help me in this question: Eden can paint a house in 12 hours. Mimie can paint the same house in 9 hours, how long would it take them working together to paint the house?

Question 70132This question is from textbook
: please help me in this question: Eden can paint a house in 12 hours. Mimie can paint the same house in 9 hours, how long would it take them working together to paint the house? This question is from textbook

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Eden can paint a house in 12 hours. Mimie can paint the same house in 9 hours, how long would it take them working together to paint the house?
-----------
Eden DATA:
time = 12 hr/job ;rate=(1/12) job/hr
--------
Mimie DATA:
time = 9 hr/job ; rate =(1/9) job/hr
------------
Together DATA:
time = x hr/job ; rate = (1/x)job/hr
----------------------
EQUATION:
rate + rate = rate together
1/12 + 1/9 = 1/x
Multiply thru by 36x to get:
3x + 4x = 36
7x=36
x=36/7 hrs or x=5 hr 9 minutes
----------
Cheers,
Stan H.
RELATED QUESTIONS
If Sally can paint a house in 4 hours and John can paint the same house in 6 hours. How... (answered by richwmiller,Earlsdon)

Please help me solve: If Sally can paint a house in 4 hours, and John can paint the... (answered by ewatrrr)

sally can paint a house in 4 hours john can paint the same house in 6 hours how long... (answered by MathLover1)

If a painter can paint a house in 6 hours and his apprentice can paint the same sized... (answered by jim_thompson5910,checkley79,ptaylor)

Fred can paint a house in 12 hours and George can paint the same house in 14 hours. How (answered by Edwin McCravy)

If Sara can paint a house in 4 hours and Bill can paint the same house in 6 hours how... (answered by sharon1948)

If bill can paint a house in 4 hours and joe can paint a house in 6 hours, how long would (answered by unlockmath,eric.schuh)

Zach can paint a house in 20 hours; Tommy can paint a house in 12 hours; and Ben can... (answered by stanbon)

If Joe can paint a house in ten hours and Larry can paint the same house in six hours how (answered by Alan3354)