Question 1035330
Do this solution using time quantities and change to time line later.

<pre>
            JOB/HOURS
WADE         {{{1/6}}}
SARAH        {{{1/4}}}
BOTH         {{{1/6+1/4}}}</pre>

The two periods of time are 2 hour and unknown t hours.
Those correspond to just Wade alone, and Wade plus Sarah.


Uniform Work Rates Rule is RT=J to relate rate, time, and amount of job or jobs.  The ONE job to be done is "clean the house".


{{{highlight((1/6)2+(1/6+1/4)t=1)}}}------------Forming this equation is the most important part of the solution.  Solving for t is the easy part.  t is not "what time"; but it is "how much time".