SOLUTION: Cashews sell for $4/lb and peanuts sell for $2/lb. How many lbs of each would you use to make 10lbs of a mixture that sells for $2.90/lb?

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Question 420752: Cashews sell for $4/lb and peanuts sell for $2/lb. How many lbs of each would you use to make 10lbs of a mixture that sells for $2.90/lb?
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
10x2.90=29
p+c=10
2p+4c=29
2p+2c=20
2c=9
c=9/2
p=11/2
You need 11/2 lbs. of peanuts and 9/2 lbs. of cashews..