A store mixes red fescue worth $12 per pound and ryegrass worth $16 per pound. The mixture is to sell for $13 per pound, Find how much should be used to make a 504-pound mixture.
How many pounds of red fescue should be used?
How many pounds of ryegrass should be used?

Question

A store mixes red fescue worth $12 per pound and ryegrass worth $16 per pound. The mixture is to sell for $13 per pound, Find how much should be used to make a 504-pound mixture. 
How many pounds of red fescue should be used?
How many pounds of ryegrass should be used?

anonymous · Answer

Hmm.. well, in a mixture, there is half and half of substances. So, I am thinking, you must do this what is 504 divided by 2?

anonymous · Answer

252

anonymous · Answer

Good. Then, you are correct! 252 pounds of ryegrass and 252 pounds of red fescue are going to be used.

anonymous · Answer

it says its wrong

anonymous · Answer

Hmm. That was what I thought was right. Let me et some help.

anonymous · Answer

okay

anonymous · Answer

@AccessDenied  May you help beth7878?

hero · Answer

f + r = 504
12f + 16r = 13*504