Question

A store sells mixtures of almonds and cashews for $6.50 per pound. Peanuts sell for $2.95 per pound and cashews sell for $7.95. How many pounds of each should be used to make 80 pounds of this mixture?

Answer 1

Assuming a typo, and you meant peanuts instead of almonds, we have

2.95p + 7.95(80-p) = 6.50*80
p = 23.2

So, 23.2 lbs of peanuts and 56.8 lbs of cashews

or whatever the nuts really are.