Question 498675
Let {{{d}}} = distance to repair shop
walking:
{{{ d = 3.5*t }}}
With bicycle:
{{{ d = 14*(1 - t) }}}
{{{ 3.5t = 14*(1 - t) }}}
{{{ 3.5t = 14 - 14t }}}
{{{ 17.5t = 14 }}}
{{{ t = .8 }}}
and, since
{{{ d = 3,5t }}}
{{{ d = 3.5*.8 }}}
{{{ d= 2.8 }}}
The distance to the repair shop is 2.8 mi
check:
{{{ d = 14*(1 - t) }}}
{{{ d = 14*(1 - .8) }}}
{{{ d = 14*.2 }}}
{{{ d = 2.8 }}} mi
OK