Question 512606
think of the eastbound car as being
stationary and the westbound car as
traveling at the sum of their speeds
Let {{{ s }}} = speed of westbound car
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{{{ d = r*t }}}
{{{ 345 = ( 50 + s )*3 }}}
{{{ 345 = 150 + 3s }}}
{{{ 3s = 195 }}}
{{{ s = 65 }}}
65 mi/hr is the speed of westbound car