How many pounds of walnuts that cost $.80 per pound must be mixed with 8 pounds of cashews that cost $1.25 per pound to make a mixture of nuts that cost $1.00 per pound

Answer 1

you need 10 pounds of the 80 cents per pound walnuts

to mix with 8 pounds of $1.25 per pound walnuts

to get 18 pounds of $1 per pound walnuts

10(.8) + 8(1.25) = 18(1)

=8 + 10 = 18