That depends on the portion size of the hamburger.
In the UK a normal portion would be 6 to 8 ounces uncooked weight.
So if you allow 8oz per person, you would need 17.5 pounds of hamburger.
You need about 10 pounds of meat which will cost about $35 depending on where you but it and what quality you get.
You will need around 10 pounds of hamburger for one cup servings of chili. This also depends on how much meat you like in your chili.
I would use about 7.5 pounds of coleslaw
35
The answer is 35.
35 pounds = 15,875.733 grams
35 pounds equates to 15,875.7 grams.
16 oz = 1 pound; 560/16 = 35 pounds
35 pounds = 15.8 kilograms
35 lb = 15.8757 kg
35 kilograms is equal to approximately 77.16 pounds.
35 pounds is equivalent to approximately 15.88 kilograms.