<PRE><B>Question 766652</B>
You need to find out how many
quarts of ice cream are used
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Anna used three quarts of milk
{{{ .02*3 = .06 }}} quarts of fat in the milk
Let {{{ x }}} = quarts of ice cream needed
{{{ .3x }}} = quarts of fat in ice cream
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{{{ ( .06 + .3x ) / ( 3 + x ) = .23 }}}
{{{ .06 + .3x = .23*( 3 + x ) }}}
{{{ .06 + .3x = .69 + .23x }}}
{{{ .07x = .63 }}}
{{{ x = 9 }}}
9 quarts of ice cream are needed
There are {{{ 3 + 9 = 12 }}} quarts in the entire mixture

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