Question 1030282
Let {{{ x }}} = pounds of water to be added
{{{ .56*1 = .56 }}} pounds of chlorine in 56% mix
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{{{ .56 / ( x + 1 ) = .12 }}}
{{{ .56 = .12*( x + 1 ) }}}
{{{ .56 = .12x + .12 }}}
{{{ .12x = .44 }}}
{{{ x = 3.667 }}}
3 and 2/3 pounds of water are needed
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check:
{{{ .56 / ( 3.667 + 1 ) = .12 }}}
{{{ .56 / 4.667 = .12 }}}
{{{ .56 = .12*4.667 }}}
{{{ .56 = .56 }}}
OK