Thursday

October 23, 2014

October 23, 2014

Posted by **Jackie** on Saturday, August 7, 2010 at 1:41pm.

- algebra -
**Ms. Sue**, Saturday, August 7, 2010 at 2:32pmCheck the previous answers.

http://www.jiskha.com/search/index.cgi?query=Soybean+Meal+Is+16%25+Protein

- algebra -
**Anonymous**, Friday, September 3, 2010 at 1:02amLet x = amount of soybean meal used

y = amount of cormeal used

x + y = 320

.16x + .08y = .15(x + y) = .15(320) = 48

.16x + .08y = 48

That's two equation and two unknowns:

x + y = 320

.16x + .08y = 48

Multiply the first equation by .08:

.08x + .08y = 25.6

.16x + .08y = 48

Subtract the first equation from the second equation:

.16x - .08x + .08y - .08y = 48 = 25.6

.08x = 22.4

Divide by .08:

x = 280

x + y = 320

280 + y = 320

y = 40

Use 280 lbs of soybean meal and 40 lbs of cornmeal.

**Answer this Question**

**Related Questions**

Algebra - Soybean meal is 16% protein; cornmeal is 8% protein. How many pounds ...

Math Algebra 1a - Soybean meal is 18% protein, cornmeal is 9% protein. How many...

algebra 1a - Soybean meal is 18% protein, cornmeal is 9% protein. How many ...

algebra - Soybean Meal Is 16% Protein; Cornmeal Is 8% Protein. How Many Pound Of...

Algebra - Soybean meal is 14% protein; cornmeal is 7% protein. How many pounds ...

algebra - Soybean meal is 12% protein; Cornmeal is 6% protein. How many pounds ...

algebra - Soybean meal is 12% protein: cornmeal is 6% protein. How many pounds ...

Algebra - Soybean meal is 18% protein; cornmeal is 9% protein. How many pounds ...

math - Soybean meal is 18% protein, cornmeal is 9% protein. How many pounds of ...

Math - Soybean meal is 18% protein, cornmeal is 9% protein. How many pounds of ...