Question 1124923
Think of this as one jet not moving and the other
Flying at the sum of their speeds
Let {{{ s }}} = the speed of the faster jet
{{{ s - 85 }}} = the speed of the slower jet
———————
{{{ 8334 = ( s + s - 85 )*6 }}}
{{{ 8334 = 12s - 510 }}}
{{{ 12s = 8844 }}}
{{{ s = 737 }}}
{{{ s - 85 = 652 }}}
Slower jet: 652 mi/hr
Faster jet: 737 mi/hr
————————————
Check:
{{{ d[1] = 737*6 }}}
{{{ d[1] = 4422 }}}
And
{{{ d[2] = 652*6 }}}
{{{ d[2] = 3912 }}}
And
{{{ d[1] + d[2] = 4422 + 3912 }}}
{{{ d[1] + d[2] = 8334 }}}
OK