SOLUTION: Donna wants to make trail mix made up of almonds, walnuts, and raisins. She wants to mix one part almonds, two parts walnuts, and three parts raisins. Almonds cost $12 per pound, w

Question 1108035: Donna wants to make trail mix made up of almonds, walnuts, and raisins. She wants to mix one part almonds, two parts walnuts, and three parts raisins. Almonds cost $12 per pound, walnuts cost $9 per pound, and raisins cost $5 per pound.
Donna has $15 to spend on the trail mix. Determine how many pounds of trail mix she can make. ( have an algebraic solution)
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Donna wants to make trail mix made up of almonds, walnuts, and raisins. She wants to mix one part almonds, two parts walnuts, and three parts raisins. Almonds cost $12 per pound, walnuts cost $9 per pound, and raisins cost $5 per pound.
Donna has $15 to spend on the trail mix. Determine how many pounds of trail mix she can make. ( have an algebraic solution)
almonds, walnuts, and raisins.

Let quantity of trail mix she can make be x
1/12 part of x is almonds @ $12 per pound
2/12 part of x is walnuts @ $9 per pound
3/12 part of x is raisins @ $ 5 per pound
Cost of all three is $15
12(x/12) +9( x/6) +5( x/4) = 15
x+ 3x/2 + 5x/4 = 15
LCM
4x+6x+5x= 60
15x = 60
x =4
4 pounds of trail mix can be made by her

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