SOLUTION: A health food store sells a mixture of raisins and roasted nuts. Raisins sell for $3.50/kg and nuts sell for $4.75/kg. How many kilograms of each should be mixed to make 20kg of th

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Question 718272: A health food store sells a mixture of raisins and roasted nuts. Raisins sell for $3.50/kg and nuts sell for $4.75/kg. How many kilograms of each should be mixed to make 20kg of this snack worth $4.00 kg?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
r, n, kgs of raisins , nuts.
R, N, prices of raisin, nuts, dollars per kg., 3.50, 4.75
T, the target price in dollars per kg, 4.00
M, the expected amount of mixture, 20 kg.


Rational Equation for Price
%28R%2Ar%2BN%2An%29%2FM=T

Sum of The Two Foods, kilograms
r%2Bn=20

Two equations, two unknowns. Solve for r and n.