Question 503705
What is Sandra's head start in km?
{{{ d[1] = 20*3 }}}
{{{ d[1] = 60 }}} km
Start a stop watch when Cecille leaves
Cecille's equation:
{{{ d = 30t }}}
Sandra's equation:
{{{ d - 60 = 20t }}}
{{{ d = 20t + 60 }}}
Since {{{d}}} is the same for each,
{{{ 30t = 20t + 60 }}}
{{{ 10t = 60 }}}
{{{ t = 6 }}}
It will take 6 hours for Cecille to catch up Sandra