Question 475827
the owners of candy store want to sell, for $6 per pound, a mixture of chocolate covered raisins, which usually sell for $3 per pound, and choclate covered macadamia nuts, which usually sells for $8 per pound, they have a 70 pound barrel of raisins . How much pounds of nuts should they mix with the barrel of raisin so they hit their target value of $6 per pound for the mixture 

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raisins = 70 lbs
nuts = n lbs
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Equations:
Value: 3*70 + 8n = 6(70+n)
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3*70 + 8n = 6*70 + 6n
2n = 3*70
n = 3*35 = 105 lbs (amout of nuts needed)
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Cheers,
Stan H.
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