[tex].4 * 4 = 1.6[/tex]
[tex].6 * 16 = 9.6[/tex]
[tex]1.6 + 9.6 = 11.2[/tex]
Without additional information, it's not possible to say how many peanuts are in the final mixture. But you can determine that there are 11.2 ounces of peanuts in the final mixture.