Question 1074199
Terri's rate,  {{{1/5}}} room per hours.

Violet's rate, {{{1/7}}} room per hours.


Working together, their combined rate is {{{1/5+1/7}}}

{{{7/35+5/35}}}

{{{12/35}}}, ROOMS per HOURS.


The TIME for them together to paint the one room is
{{{35/12}}}


{{{2&11/12}}} hours

or

2 hours 55 minutes