Question 1149228
Birdseed, L dollars per pound
Sunflowerseed, H dollars per pound
Amount of seed mixture, M pounds
Price of mixture, T dollars per pound
v, amount of the sunflower seeds
M-v, amount of birdseeds


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

-

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

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

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

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


{{{system(L=0.68,H=0.98,M=40,T=0.75)}}}
Use these to evaluate v, and solve for M-v.