Question

How many pounds of peanuts that cost $4.00 per pound must be mixed with 20lb of cashewsthat cost $6.00 per pound to make a mixture that costs $5.00 per pound?Format Answer like this -----> x pounds

Answer 1

$4(xlb of peanut )+ $6(20lb of cashew = $5(x +20) per lb

4x +120 =5(x +20)

4x + 120= 5x +100

120-100 = 5x -4x

20 =x

x =20 pounds

check

(20lb x 4) + (20lb x 6) = (40x 5)

$80 + $120 =$200