Question 168315
we know that the total of annual and perennial is 100 pounds

so lets call annual x, and perennial 100-x

now .5(x)+.75(100-x)=.65(100)

.5x+75-.75x=65

.25x=10

{{{highlight(x=40)}}} of annual

{{{highlight(100-40=60)}}}pounds of perennial seed