SOLUTION: Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 29 pounds of feed worth $ 0.37 per pound by mixing one kind worth $ 0.29 per pound with another worth $ 0.4

Question 679337: Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 29 pounds of feed worth $ 0.37 per pound by mixing one kind worth $ 0.29 per pound with another worth $ 0.46 per pound. How many pounds of the cheaper kind should they use in the mix?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = pounds of $.29 / lb feed needed
Let = pounds of $.46 / lb feed needed
----------------
given:
(1)
(2)
-----------------------------
(2)
(2)
(2)
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)

and, since
(1)
(1)
They should use 15.35 pounds of the cheaper feed
--------------
check answer:
(2)
(2)
(2)
(2)
(2)
(2)
OK

RELATED QUESTIONS
Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 54 pounds of... (answered by midwood_trail)

Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 54 pounds of... (answered by mananth)

Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 27 pounds of... (answered by mananth)

Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 27 pounds of... (answered by jorel1380)

Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 35 pounds of... (answered by mananth)

Tim and Judy mix two kinds of feed for pedigreed dogs. They wish to make 27lbs of feed by (answered by stanbon)

I am not sure how to set this word problem up in order to solve. Tim and Judy mix two... (answered by josmiceli)

Tim and Judy mix two kinds of feed for pedigree dogs. They wish to make 24 pounds of feed (answered by josmiceli)

Tim and Judy mix two kinds of feed for pedigree dogs. They wish to make 17 pounds of feed (answered by Mathtut)