Question

Oats ’n’ Barley bulk food store sells cashews at $18/kg and peanuts at $6/kg. If the store wants to make a mixture of 50 kg of cashews and peanuts to sell for $9/kg, how many kilograms of cashews and how many kilograms of peanuts must be in the mixture? Hint use a chart considering total cost/value to organize your thoughts. You do not have to include the chart in your solution.

Answer 1

18X+6(50-X)=9*50

18X+300-6X=450

12X=450-300

12X=150

X=150/12

X=12.5 KG OF CASHEWS.

50-12.5=37.5 KG OF PEANUTS.

PROOF

18*12.5+6*37.5=9*45

225+225=450

450=450