SOLUTION: Susan wants to mix 10 pounds of Virginia peanuts that cost $3.50 a pound with Spanish peanuts that cost $3.00 a pound to obtain a mixture that costs $3.40 a pound. How many pounds

Question 536491: Susan wants to mix 10 pounds of Virginia peanuts that cost $3.50 a pound with Spanish peanuts that cost $3.00 a pound to obtain a mixture that costs $3.40 a pound. How many pounds of Spanish peanuts should she use?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = pounds of Spanish peanuts she needs
given:
cost of Virginia peanuts used
= cost of Spanish peanuts used
-------------
( cost of peanuts ) / ( weight in pounds ) = cost per pound of mixture

She needs 2.5 pounds of spanish peanuts
check:

OK
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