Question

Soybean meal is 18% protein, cornmeal is 9% protein. How many pounds of each should be mixed together in order to get 360-lb mixture that is 11% protein?

How many pounds of cornmeal should be in the mixture?

How many pounds of the soybean meal should be in the mixture?
Reiny
let the amount of soybean be x lb
let the amount of cornmeal be 360-x lbs

so .18x + .09(360-x) = .11(360)

I would multiply the equation by 100, then its easy