Question 1129624
Let {{{ x }}} = liters of 94% drink to be added
{{{ .94x }}} = liters of milk in 94% drink
{{{ .24*15 = 3.6 }}} = liters of milk in 24% drink
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{{{ ( .94x + 3.6 ) / ( x + 15 ) = .52 }}}
{{{ .94x + 3.6 = .52*( x + 15 ) }}}
{{{ .94x + 3.6 = .52x + 7.8 }}}
{{{ .42x = 4.2 }}}
{{{ x = 10 }}}
10 liters of 94% drink should be added
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check:
{{{ ( .94*10 + 3.6 )/( 10 + 15 ) = .52 }}}
{{{ ( 9.4 + 3.6 ) / 25 = .52 }}}
{{{ 13 = .52*25 }}}
{{{ 13 = 13 }}}
OK