You are here:

Advanced Math/Elimination

Advertisement

Expert: Sherman D. - 4/20/2004


Question
Soybean meal is 16% protein and corn meal is 9% protein. How many pounds of each should be mixed to get a 350-lb mixture that is 12% protein?

Answer
here is what i get

16x + 9y = 12
x + y = 350

Multiply bottom by -9

16x + 9y = 12
-9x - 9y = -3150

7x = -3138

x = -448.3

x + y = 350
-448.3 + y = 350
y = 798.3

so what i get is this

-448.3 lbs of soybeans
798.3 lbs of corn meal

that is what i got, but it could be wrong.

Advanced Math

All Answers

Answers by Expert:

Ask Experts

Volunteer

Sherman D.

Expertise

I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.

Experience

Mathematics, Recipes, History, and Games.

Education/Credentials
High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.

Awards and Honors
Principle's list and A and B honor roll in high school only.

©2012 About.com, a part of The New York Times Company. All rights reserved.