Nuts worth $3 per lb are to be mixed with 8 lb of nuts worth $4.25 per lb to obtain a mixture that will be sold for $4 per lb. How many pounds of the $3 nuts should be used?

Answer 1

You want x where

3.00(x) + 4.25(8) = 4.00(x+8)

Answer 2

2 lbs of the $3 nuts should be used.