A health food store sells oatmeal for $3.60 per pound and bran flakes for $4.80 per pound. How many pounds of each should be used to get a mixture of 30 pounds that sells for $4.00 a pound?

A. 15 lbs oatmeal, 15 lbs bran flakes
B. 20 lbs oatmeal, 10 lbs bran flakes
C. 15 lbs bran flakes, 15 lbs oatmeal
D. 20 lbs bran flakes, 10 lbs oatmeal

Question

A health food store sells oatmeal for $3.60 per pound and bran flakes for $4.80 per pound. How many pounds of each should be used to get a mixture of 30 pounds that sells for $4.00 a pound?


 A. 15 lbs oatmeal, 15 lbs bran flakes 
 B. 20 lbs oatmeal, 10 lbs bran flakes 
 C. 15 lbs bran flakes, 15 lbs oatmeal 
 D. 20 lbs bran flakes, 10 lbs oatmeal

anonymous · Answer

$$4.80x+3.60(30-x)=4\times 30$$ solve for x

anonymous · Answer

so what's the answer?

anonymous · Answer

i need this answer it's the last on my test please

anonymous · Answer

if you just need the answer, why ask and get an opinion. just cheat http://www.wolframalpha.com/input/?i=4.80x%2B3.60%2830-x%29%3D4*+30