<PRE><B>Question 1149942</B>
Same as so many other examples of this type


-----------------------------------------------------------------
8 pounds of metal with 39% silver. If Nancy combines one metal with 19% silver, and another with 61% silver, how much of each metal
----------------------------------------------------------------



--------------------------------------------------------
M pounds of metal with T% silver. If  combines one metal with L% silver, and another with H% silver, how much of each metal
-------------------------------------------------------



y pounds of the H% material
M-y pounds of the L% material

{{{Hy+L(M-y)=TM}}}

-

{{{Hy+LM-Ly=TM}}}
{{{Hy-Ly=TM-LM}}}
{{{(H-L)y=M(T-L)}}}
{{{highlight_green(y=M((T-L)/(H-L)))}}}


Substitute the given values.
{{{y=8((39-19)/(61-19))}}}


{{{highlight(y=3.81)*pounds}}}-----------of 61%, or H% silver
(3 pounds 13 ounces)


{{{highlight(4.19)pounds}}}-----------of 19% silver, or L%</PRE>