Problema Solution
A store sells cashews for $5 per pound and peanuts for $2 per pound. The manager decides to mix 70 pounds of peanuts with some cashews and sell the mixture for $3 per pound. How many pounds of cashews should be mixed with the peanuts so that the mixture will produce the same revenue as would selling the nuts desperately?
Answer provided by our tutors
let
x = lbs of cashews used for the mix
5x + 2*70 = 3(x + 70)
by solving we find
x = 35 lbs
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35 pounds of cashews should be mixed with the peanuts.