SOLUTION: A party mix is made from pretzels that cost $2 a pound and cereal that costs $2.40 a pound. If a total of 4 pounds is made and the cost for the mix is $2.15 a pound, how many poun

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Question 871413: A party mix is made from pretzels that cost $2 a pound and cereal that costs $2.40 a pound. If a total of 4 pounds is made and the cost for the mix is $2.15 a pound, how many pounds of each ingredient are used?
Found 2 solutions by josgarithmetic, mananth:
Answer by josgarithmetic(39838) About Me  (Show Source):
You can put this solution on YOUR website!
The question fits a certain form of Mixture problem. See this lesson for a discussion of this type:

Mixture: Two-Part, price or cost, both material amounts unknown

Answer by mananth(16949) About Me  (Show Source):
You can put this solution on YOUR website!
pretzels 2.00 ---------------- x pounds
cereals 2.40 ------ 4 - x pounds
Mixture 2.15 ---------------- 4
Total 4 pounds
2 x + 2.4 ( 4 - x ) = 4*2.15
2 x + 9.6 - 2.4 x = 8.6
2 x - 2.4 x = 8.6 - -9.6
-0.4 x = -1
/ -0.4
x = 2.5 pounds 2.00% pretzels
1.5 pounds 2.40% cereals

m.ananth@hotmail.ca