Question 1042829
{{{ x / ( 5 + x ) = .32 }}}
{{{ x = .32*( 5 + x ) }}}
{{{ x = 1.6 + .32x }}}
{{{ .68x = 1.6 }}}
{{{ x = 1.6/.68 }}}
{{{ x = 2.35 }}}
Answer is (D)
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Check:
{{{ 2.35 / ( 5 + 2.35 ) = .32 }}}
{{{ 2.35 / 7.35 = .32 }}}
{{{ .31978 }}}
OK ( error due to rounding off )