<PRE><B>Question 406743</B>
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Hi
produce 50 lb of a mixture
Let x and (50-x)represent the amount of the 5$ and $2.50 mixtures respectively 
Question states*** Mixing
 5x + 2.50(50-x) =3*50
Solving for x
     2.50x = .50*50
         x = .50*50/2.50
         x = 10lb, the amount of the $5/lb tea.  40lb of $2.50/lb tea.
CHECKING our Answer***
 50 + 100 = 150</PRE>