Respuesta :

Answer:The walnuts weigh 31 pounds PER CRATE!!!!

Step-by-step explanation:

Answer:

The walnuts weigh 620 pounds without the crates

Step-by-step explanation:

10 x 20 gives you of the weight of the empty crates.

Subtract you answer from 820 to get how much all the walnuts way alone.

820 - 200 = 620