Question 1153659
H=51 percent
L=23 percent
T=47 percent
M=56 pounds
v=56 pounds, (unknown)
M-v, pounds unknown also for L concentration material


{{{highlight_green(Hv+L(M-v)=TM)}}}


{{{Hv+LM-Lv=TM}}}

{{{Hv-Lv=TM-LM}}}

{{{v(H-L)=M(T-L)}}}

{{{highlight(v=M((T-L)/(H-L)))}}}

Just substitute your given values and evaluate v and M-v.