Question 916911
Let {{{ x }}} = amount in 5% account
{{{ 40000 - x }}} = amount in 15% account
{{{ .05x }}} = interest earned @ 5%
{{{ .15*( 40000 - x ) }}} = interest earned @ 15%
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{{{ .05x=.15*( 40000 - x ) }}} 
{{{ .05x = 6000  - .15x }}}
{{{ .2x = 6000 }}}
{{{ x = 30000 }}}
and
{{{ 40000 - x = 40000 - 30000 }}}
{{{ 40000 - 30000 = 10000 }}}
$30,000 is in 5% account
$10,000 is in 15% account
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check:
{{{ .05*30000=.15*( 40000 - 30000 ) }}} 
{{{ 1500 = .15*10000 }}}
{{{ 1500 = 1500 }}}
OK