SOLUTION: Sally can paint a room in 7 hours while it takes Steve 9 hours to paint the same room. How long would it take them to paint the room if they worked​ together?

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Sally can paint a room in 7 hours while it takes Steve 9 hours to paint the same room. How long would it take them to paint the room if they worked​ together?      Log On


   

Question 1069788: Sally can paint a room in 7 hours while it takes Steve 9 hours to paint the same room. How long would it take them to paint the room if they worked​ together?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Their rate working together:
%281%2F7%2B1%2F9%29%28rooms%2Fhours%29

Now just do the arithmetic.

How many "rooms" in how much time?
How much time for ONE room?