Question 1197807
A type of mixture problem asked very frequently.  There are millions of these answered.


43% and 63%;
want mixture 43 pounds of 49%;


L=43
H=63
T=49
M=43, pounds of the mixture
y, unknown pounds of the H% alloy (63% alloy)


{{{Hy+L(M-y)=TM}}}
-
{{{Hy+LM-Ly=TM}}}
{{{(H-L)y=TM-LM}}}
{{{highlight(y=M((T-L)/(H-L)))}}}
and you can find {{{M-y}}}.


Substitute your given values.



--


How much pounds the 63%:
{{{43((49-43)/(63-43))}}}

{{{43(6/20)}}}

{{{43(3/10)}}}

{{{12.9}}}------pounds of the 63% Al alloy