Question 1008001
Sol's rate, {{{1/9}}}
Dink's rate, {{{1/16}
Sol and Dink Together, {{{1/9+1/16}}}.

Time for Sol to work alone to finish, {{{t}}}.


The rates are for JOBS per HOUR; the numerator shown in the individual rates is because
the time being connected to ONE job.


4 hours working together, amount of job was  {{{(1/9+1/16)*4}}}.


t hours Sol working to finish, alone,  job was  {{{(1/9)t}}}.


1 job is how much of JOBS to do.
{{{highlight((1/9+1/16)4+(1/9)t=1)}}}


Solve for t.