<PRE><B>Question 1137393</B>
3 pounds of 55% Kenyan coffee
x pounds of 15% Kenyan coffee
x+3 pounds of 27% Kenyan, mixture


Using the percents in their decimal form,
and accounting for the AMOUNT of the Kenyan coffee,
Kenyan coffee of the two parts = Kenyan coffee in the mixture
{{{3*0.55+0.15x=0.27(x+3)}}}

-

{{{0.55*3+0.15x=0.27x+0.27*3}}}
{{{0.55*3-0.27*3=0.27x-0.15x}}}
{{{0.84=0.12x}}}
{{{highlight(x=7)}}}--------------the amount of the 15% Kenyan coffee blend</PRE>