is 12​% protein​; cornmeal is 6​% protein. How many pounds of each should be mixed together in order to get 240​-lb mixture that is 11​% protein​?

Answer 1

.12x + .06(240-x) = .11(240)

solve for x = amount of 12%

solve for 240-x = amount of 6%

.12x -.06x = (.11- .06)(240)

.06x = .05(240)

x = .05(240)/.06

x =200 pounds of 12% protein

240-x = 40 pounds of 6% protein