Problema Solution
Donna wants to make a 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. How many pounds of trail mix can she make?
Answer provided by our tutors
Let
x = lbs almonds
2x = lbs walnuts
3x = lbs raisins
The total cost of the mix is $15 thus:
12x + 9*2x + 5*3x = 15
........
click here to see the equation solved for x
........
x = 1/3 lb
Altogether:
x + 2x + 3x = 6x = 6*(1/3) = 2 lb
Donna can make 2 pounds of trail mix.